81019620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 288

約数和(自身を含む): 297198720

約数和(自身を除く): 216179100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 29, 30, 33, 34, 36, 44, 45, 51, 55, 58, 60, 66, 68, 83, 85, 87, 90, 99, 102, 110, 116, 132, 145, 153, 165, 166, 170, 174, 180, 187, 198, 204, 220, 249, 255, 261, 290, 306, 319, 330, 332, 340, 348, 374, 396, 415, 435, 493, 495, 498, 510, 522, 561, 580, 612, 638, 660, 747, 748, 765, 830, 870, 913, 935, 957, 986, 990, 996, 1020, 1044, 1122, 1245, 1276, 1305, 1411, 1479, 1494, 1530, 1595, 1660, 1683, 1740, 1826, 1870, 1914, 1972, 1980, 2244, 2407, 2465, 2490, 2610, 2739, 2805, 2822, 2871, 2958, 2988, 3060, 3190, 3366, 3652, 3735, 3740, 3828, 4233, 4437, 4565, 4785, 4814, 4930, 4980, 5220, 5423, 5478, 5610, 5644, 5742, 5916, 6380, 6732, 7055, 7221, 7395, 7470, 8217, 8415, 8466, 8874, 9130, 9570, 9628, 9860, 10846, 10956, 11220, 11484, 12035, 12699, 13695, 14110, 14355, 14442, 14790, 14940, 15521, 16269, 16434, 16830, 16932, 17748, 18260, 19140, 21165, 21663, 21692, 22185, 24070, 25398, 26477, 27115, 27390, 28220, 28710, 28884, 29580, 31042, 32538, 32868, 33660, 36105, 40919, 41085, 42330, 43326, 44370, 46563, 48140, 48807, 50796, 52954, 54230, 54780, 57420, 62084, 63495, 65076, 72210, 77605, 79431, 81345, 81838, 82170, 84660, 86652, 88740, 93126, 97614, 105908, 108315, 108460, 122757, 126990, 132385, 139689, 144420, 155210, 158862, 162690, 163676, 164340, 186252, 195228, 204595, 216630, 232815, 238293, 244035, 245514, 253980, 264770, 279378, 310420, 317724, 325380, 368271, 397155, 409190, 433260, 450109, 465630, 476586, 488070, 491028, 529540, 558756, 613785, 698445, 736542, 794310, 818380, 900218, 931260, 953172, 976140, 1191465, 1227570, 1350327, 1396890, 1473084, 1588620, 1800436, 1841355, 2250545, 2382930, 2455140, 2700654, 2793780, 3682710, 4050981, 4501090, 4765860, 5401308, 6751635, 7365420, 8101962, 9002180, 13503270, 16203924, 20254905, 27006540, 40509810, 81019620]

約数ペア:

[(1, 81019620), (2, 40509810), (3, 27006540), (4, 20254905), (5, 16203924), (6, 13503270), (9, 9002180), (10, 8101962), (11, 7365420), (12, 6751635), (15, 5401308), (17, 4765860), (18, 4501090), (20, 4050981), (22, 3682710), (29, 2793780), (30, 2700654), (33, 2455140), (34, 2382930), (36, 2250545), (44, 1841355), (45, 1800436), (51, 1588620), (55, 1473084), (58, 1396890), (60, 1350327), (66, 1227570), (68, 1191465), (83, 976140), (85, 953172), (87, 931260), (90, 900218), (99, 818380), (102, 794310), (110, 736542), (116, 698445), (132, 613785), (145, 558756), (153, 529540), (165, 491028), (166, 488070), (170, 476586), (174, 465630), (180, 450109), (187, 433260), (198, 409190), (204, 397155), (220, 368271), (249, 325380), (255, 317724), (261, 310420), (290, 279378), (306, 264770), (319, 253980), (330, 245514), (332, 244035), (340, 238293), (348, 232815), (374, 216630), (396, 204595), (415, 195228), (435, 186252), (493, 164340), (495, 163676), (498, 162690), (510, 158862), (522, 155210), (561, 144420), (580, 139689), (612, 132385), (638, 126990), (660, 122757), (747, 108460), (748, 108315), (765, 105908), (830, 97614), (870, 93126), (913, 88740), (935, 86652), (957, 84660), (986, 82170), (990, 81838), (996, 81345), (1020, 79431), (1044, 77605), (1122, 72210), (1245, 65076), (1276, 63495), (1305, 62084), (1411, 57420), (1479, 54780), (1494, 54230), (1530, 52954), (1595, 50796), (1660, 48807), (1683, 48140), (1740, 46563), (1826, 44370), (1870, 43326), (1914, 42330), (1972, 41085), (1980, 40919), (2244, 36105), (2407, 33660), (2465, 32868), (2490, 32538), (2610, 31042), (2739, 29580), (2805, 28884), (2822, 28710), (2871, 28220), (2958, 27390), (2988, 27115), (3060, 26477), (3190, 25398), (3366, 24070), (3652, 22185), (3735, 21692), (3740, 21663), (3828, 21165), (4233, 19140), (4437, 18260), (4565, 17748), (4785, 16932), (4814, 16830), (4930, 16434), (4980, 16269), (5220, 15521), (5423, 14940), (5478, 14790), (5610, 14442), (5644, 14355), (5742, 14110), (5916, 13695), (6380, 12699), (6732, 12035), (7055, 11484), (7221, 11220), (7395, 10956), (7470, 10846), (8217, 9860), (8415, 9628), (8466, 9570), (8874, 9130)]