204865980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:121

約数の個数: 288

約数和(自身を含む): 720679680

約数和(自身を除く): 515813700

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 19, 20, 22, 30, 31, 33, 34, 38, 44, 51, 55, 57, 60, 62, 66, 68, 76, 85, 93, 95, 102, 110, 114, 124, 132, 155, 165, 170, 186, 187, 190, 204, 209, 220, 228, 255, 285, 310, 323, 330, 340, 341, 372, 374, 380, 418, 465, 510, 527, 561, 570, 589, 620, 627, 646, 660, 682, 748, 836, 930, 935, 961, 969, 1020, 1023, 1045, 1054, 1122, 1140, 1178, 1254, 1292, 1364, 1581, 1615, 1705, 1767, 1860, 1870, 1922, 1938, 2046, 2090, 2108, 2244, 2356, 2508, 2635, 2805, 2883, 2945, 3135, 3162, 3230, 3410, 3534, 3553, 3740, 3844, 3876, 4092, 4180, 4805, 4845, 5115, 5270, 5610, 5766, 5797, 5890, 6270, 6324, 6460, 6479, 6820, 7068, 7106, 7905, 8835, 9610, 9690, 10013, 10230, 10540, 10571, 10659, 11220, 11532, 11594, 11780, 12540, 12958, 14212, 14415, 15810, 16337, 17391, 17670, 17765, 18259, 19220, 19380, 19437, 20026, 20460, 21142, 21318, 23188, 25916, 28830, 28985, 30039, 31620, 31713, 32395, 32674, 34782, 35340, 35530, 36518, 38874, 40052, 42284, 42636, 49011, 50065, 52855, 53295, 54777, 57660, 57970, 60078, 63426, 64790, 65348, 69564, 71060, 73036, 77748, 81685, 86955, 91295, 97185, 98022, 100130, 105710, 106590, 109554, 110143, 115940, 120156, 126852, 129580, 150195, 158565, 163370, 173910, 179707, 182590, 194370, 196044, 200260, 200849, 211420, 213180, 219108, 220286, 245055, 273885, 300390, 310403, 317130, 326740, 330429, 347820, 359414, 365180, 388740, 401698, 440572, 490110, 539121, 547770, 550715, 600780, 602547, 620806, 634260, 660858, 718828, 803396, 898535, 931209, 980220, 1004245, 1078242, 1095540, 1101430, 1205094, 1241612, 1321716, 1552015, 1652145, 1797070, 1862418, 2008490, 2156484, 2202860, 2410188, 2695605, 3012735, 3104030, 3304290, 3414433, 3594140, 3724836, 4016980, 4656045, 5391210, 6025470, 6208060, 6608580, 6828866, 9312090, 10243299, 10782420, 12050940, 13657732, 17072165, 18624180, 20486598, 34144330, 40973196, 51216495, 68288660, 102432990, 204865980]

約数ペア:

[(1, 204865980), (2, 102432990), (3, 68288660), (4, 51216495), (5, 40973196), (6, 34144330), (10, 20486598), (11, 18624180), (12, 17072165), (15, 13657732), (17, 12050940), (19, 10782420), (20, 10243299), (22, 9312090), (30, 6828866), (31, 6608580), (33, 6208060), (34, 6025470), (38, 5391210), (44, 4656045), (51, 4016980), (55, 3724836), (57, 3594140), (60, 3414433), (62, 3304290), (66, 3104030), (68, 3012735), (76, 2695605), (85, 2410188), (93, 2202860), (95, 2156484), (102, 2008490), (110, 1862418), (114, 1797070), (124, 1652145), (132, 1552015), (155, 1321716), (165, 1241612), (170, 1205094), (186, 1101430), (187, 1095540), (190, 1078242), (204, 1004245), (209, 980220), (220, 931209), (228, 898535), (255, 803396), (285, 718828), (310, 660858), (323, 634260), (330, 620806), (340, 602547), (341, 600780), (372, 550715), (374, 547770), (380, 539121), (418, 490110), (465, 440572), (510, 401698), (527, 388740), (561, 365180), (570, 359414), (589, 347820), (620, 330429), (627, 326740), (646, 317130), (660, 310403), (682, 300390), (748, 273885), (836, 245055), (930, 220286), (935, 219108), (961, 213180), (969, 211420), (1020, 200849), (1023, 200260), (1045, 196044), (1054, 194370), (1122, 182590), (1140, 179707), (1178, 173910), (1254, 163370), (1292, 158565), (1364, 150195), (1581, 129580), (1615, 126852), (1705, 120156), (1767, 115940), (1860, 110143), (1870, 109554), (1922, 106590), (1938, 105710), (2046, 100130), (2090, 98022), (2108, 97185), (2244, 91295), (2356, 86955), (2508, 81685), (2635, 77748), (2805, 73036), (2883, 71060), (2945, 69564), (3135, 65348), (3162, 64790), (3230, 63426), (3410, 60078), (3534, 57970), (3553, 57660), (3740, 54777), (3844, 53295), (3876, 52855), (4092, 50065), (4180, 49011), (4805, 42636), (4845, 42284), (5115, 40052), (5270, 38874), (5610, 36518), (5766, 35530), (5797, 35340), (5890, 34782), (6270, 32674), (6324, 32395), (6460, 31713), (6479, 31620), (6820, 30039), (7068, 28985), (7106, 28830), (7905, 25916), (8835, 23188), (9610, 21318), (9690, 21142), (10013, 20460), (10230, 20026), (10540, 19437), (10571, 19380), (10659, 19220), (11220, 18259), (11532, 17765), (11594, 17670), (11780, 17391), (12540, 16337), (12958, 15810), (14212, 14415)]