20408545260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{12491}}^1$

素因数の和:12848

約数の個数: 144

約数和(自身を含む): 64250353440

約数和(自身を除く): 43841808180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 313, 348, 435, 522, 580, 626, 870, 939, 1044, 1252, 1305, 1565, 1740, 1878, 2610, 2817, 3130, 3756, 4695, 5220, 5634, 6260, 9077, 9390, 11268, 12491, 14085, 18154, 18780, 24982, 27231, 28170, 36308, 37473, 45385, 49964, 54462, 56340, 62455, 74946, 81693, 90770, 108924, 112419, 124910, 136155, 149892, 163386, 181540, 187365, 224838, 249820, 272310, 326772, 362239, 374730, 408465, 449676, 544620, 562095, 724478, 749460, 816930, 1086717, 1124190, 1448956, 1633860, 1811195, 2173434, 2248380, 3260151, 3622390, 3909683, 4346868, 5433585, 6520302, 7244780, 7819366, 10867170, 11729049, 13040604, 15638732, 16300755, 19548415, 21734340, 23458098, 32601510, 35187147, 39096830, 46916196, 58645245, 65203020, 70374294, 78193660, 113380807, 117290490, 140748588, 175935735, 226761614, 234580980, 340142421, 351871470, 453523228, 566904035, 680284842, 703742940, 1020427263, 1133808070, 1360569684, 1700712105, 2040854526, 2267616140, 3401424210, 4081709052, 5102136315, 6802848420, 10204272630, 20408545260]

約数ペア:

[(1, 20408545260), (2, 10204272630), (3, 6802848420), (4, 5102136315), (5, 4081709052), (6, 3401424210), (9, 2267616140), (10, 2040854526), (12, 1700712105), (15, 1360569684), (18, 1133808070), (20, 1020427263), (29, 703742940), (30, 680284842), (36, 566904035), (45, 453523228), (58, 351871470), (60, 340142421), (87, 234580980), (90, 226761614), (116, 175935735), (145, 140748588), (174, 117290490), (180, 113380807), (261, 78193660), (290, 70374294), (313, 65203020), (348, 58645245), (435, 46916196), (522, 39096830), (580, 35187147), (626, 32601510), (870, 23458098), (939, 21734340), (1044, 19548415), (1252, 16300755), (1305, 15638732), (1565, 13040604), (1740, 11729049), (1878, 10867170), (2610, 7819366), (2817, 7244780), (3130, 6520302), (3756, 5433585), (4695, 4346868), (5220, 3909683), (5634, 3622390), (6260, 3260151), (9077, 2248380), (9390, 2173434), (11268, 1811195), (12491, 1633860), (14085, 1448956), (18154, 1124190), (18780, 1086717), (24982, 816930), (27231, 749460), (28170, 724478), (36308, 562095), (37473, 544620), (45385, 449676), (49964, 408465), (54462, 374730), (56340, 362239), (62455, 326772), (74946, 272310), (81693, 249820), (90770, 224838), (108924, 187365), (112419, 181540), (124910, 163386), (136155, 149892)]