81570420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 288

約数和(自身を含む): 292481280

約数和(自身を除く): 210910860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 23, 30, 34, 36, 38, 45, 46, 51, 57, 60, 61, 68, 69, 76, 85, 90, 92, 95, 102, 114, 115, 122, 138, 153, 170, 171, 180, 183, 190, 204, 207, 228, 230, 244, 255, 276, 285, 305, 306, 323, 340, 342, 345, 366, 380, 391, 414, 437, 460, 510, 549, 570, 610, 612, 646, 684, 690, 732, 765, 782, 828, 855, 874, 915, 969, 1020, 1035, 1037, 1098, 1140, 1159, 1173, 1220, 1292, 1311, 1380, 1403, 1530, 1564, 1615, 1710, 1748, 1830, 1938, 1955, 2070, 2074, 2185, 2196, 2318, 2346, 2622, 2745, 2806, 2907, 3060, 3111, 3230, 3420, 3477, 3519, 3660, 3876, 3910, 3933, 4140, 4148, 4209, 4370, 4636, 4692, 4845, 5185, 5244, 5490, 5612, 5795, 5814, 5865, 6222, 6460, 6555, 6954, 7015, 7038, 7429, 7820, 7866, 8418, 8740, 9333, 9690, 10370, 10431, 10980, 11590, 11628, 11730, 12444, 12627, 13110, 13908, 14030, 14076, 14535, 14858, 15555, 15732, 16836, 17385, 17595, 18666, 19380, 19665, 19703, 20740, 20862, 21045, 22287, 23180, 23460, 23851, 25254, 26220, 26657, 28060, 29070, 29716, 31110, 34770, 35190, 37145, 37332, 39330, 39406, 41724, 42090, 44574, 46665, 47702, 50508, 52155, 53314, 58140, 59109, 62220, 63135, 66861, 69540, 70380, 71553, 74290, 78660, 78812, 79971, 84180, 89148, 93330, 95404, 98515, 104310, 106628, 111435, 118218, 119255, 126270, 133285, 133722, 143106, 148580, 159942, 177327, 186660, 197030, 208620, 214659, 222870, 236436, 238510, 239913, 252540, 266570, 267444, 286212, 295545, 319884, 334305, 354654, 357765, 394060, 399855, 429318, 445740, 453169, 477020, 479826, 533140, 591090, 668610, 709308, 715530, 799710, 858636, 886635, 906338, 959652, 1073295, 1182180, 1199565, 1337220, 1359507, 1431060, 1599420, 1773270, 1812676, 2146590, 2265845, 2399130, 2719014, 3546540, 4078521, 4293180, 4531690, 4798260, 5438028, 6797535, 8157042, 9063380, 13595070, 16314084, 20392605, 27190140, 40785210, 81570420]

約数ペア:

[(1, 81570420), (2, 40785210), (3, 27190140), (4, 20392605), (5, 16314084), (6, 13595070), (9, 9063380), (10, 8157042), (12, 6797535), (15, 5438028), (17, 4798260), (18, 4531690), (19, 4293180), (20, 4078521), (23, 3546540), (30, 2719014), (34, 2399130), (36, 2265845), (38, 2146590), (45, 1812676), (46, 1773270), (51, 1599420), (57, 1431060), (60, 1359507), (61, 1337220), (68, 1199565), (69, 1182180), (76, 1073295), (85, 959652), (90, 906338), (92, 886635), (95, 858636), (102, 799710), (114, 715530), (115, 709308), (122, 668610), (138, 591090), (153, 533140), (170, 479826), (171, 477020), (180, 453169), (183, 445740), (190, 429318), (204, 399855), (207, 394060), (228, 357765), (230, 354654), (244, 334305), (255, 319884), (276, 295545), (285, 286212), (305, 267444), (306, 266570), (323, 252540), (340, 239913), (342, 238510), (345, 236436), (366, 222870), (380, 214659), (391, 208620), (414, 197030), (437, 186660), (460, 177327), (510, 159942), (549, 148580), (570, 143106), (610, 133722), (612, 133285), (646, 126270), (684, 119255), (690, 118218), (732, 111435), (765, 106628), (782, 104310), (828, 98515), (855, 95404), (874, 93330), (915, 89148), (969, 84180), (1020, 79971), (1035, 78812), (1037, 78660), (1098, 74290), (1140, 71553), (1159, 70380), (1173, 69540), (1220, 66861), (1292, 63135), (1311, 62220), (1380, 59109), (1403, 58140), (1530, 53314), (1564, 52155), (1615, 50508), (1710, 47702), (1748, 46665), (1830, 44574), (1938, 42090), (1955, 41724), (2070, 39406), (2074, 39330), (2185, 37332), (2196, 37145), (2318, 35190), (2346, 34770), (2622, 31110), (2745, 29716), (2806, 29070), (2907, 28060), (3060, 26657), (3111, 26220), (3230, 25254), (3420, 23851), (3477, 23460), (3519, 23180), (3660, 22287), (3876, 21045), (3910, 20862), (3933, 20740), (4140, 19703), (4148, 19665), (4209, 19380), (4370, 18666), (4636, 17595), (4692, 17385), (4845, 16836), (5185, 15732), (5244, 15555), (5490, 14858), (5612, 14535), (5795, 14076), (5814, 14030), (5865, 13908), (6222, 13110), (6460, 12627), (6555, 12444), (6954, 11730), (7015, 11628), (7038, 11590), (7429, 10980), (7820, 10431), (7866, 10370), (8418, 9690), (8740, 9333)]