131023170

素因数分解:

$2^1\times 3^8\times 5^1\times {\mathrm{1997}}^1$

素因数の和:2028

約数の個数: 72

約数和(自身を含む): 353921724

約数和(自身を除く): 222898554

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 1215, 1458, 1997, 2187, 2430, 3645, 3994, 4374, 5991, 6561, 7290, 9985, 10935, 11982, 13122, 17973, 19970, 21870, 29955, 32805, 35946, 53919, 59910, 65610, 89865, 107838, 161757, 179730, 269595, 323514, 485271, 539190, 808785, 970542, 1455813, 1617570, 2426355, 2911626, 4367439, 4852710, 7279065, 8734878, 13102317, 14558130, 21837195, 26204634, 43674390, 65511585, 131023170]

約数ペア:

[(1, 131023170), (2, 65511585), (3, 43674390), (5, 26204634), (6, 21837195), (9, 14558130), (10, 13102317), (15, 8734878), (18, 7279065), (27, 4852710), (30, 4367439), (45, 2911626), (54, 2426355), (81, 1617570), (90, 1455813), (135, 970542), (162, 808785), (243, 539190), (270, 485271), (405, 323514), (486, 269595), (729, 179730), (810, 161757), (1215, 107838), (1458, 89865), (1997, 65610), (2187, 59910), (2430, 53919), (3645, 35946), (3994, 32805), (4374, 29955), (5991, 21870), (6561, 19970), (7290, 17973), (9985, 13122), (10935, 11982)]