31690440

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{9781}}^1$

素因数の和:9804

約数の個数: 80

約数和(自身を含む): 106525980

約数和(自身を除く): 74835540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 9781, 19562, 29343, 39124, 48905, 58686, 78248, 88029, 97810, 117372, 146715, 176058, 195620, 234744, 264087, 293430, 352116, 391240, 440145, 528174, 586860, 704232, 792261, 880290, 1056348, 1173720, 1320435, 1584522, 1760580, 2112696, 2640870, 3169044, 3521160, 3961305, 5281740, 6338088, 7922610, 10563480, 15845220, 31690440]

約数ペア:

[(1, 31690440), (2, 15845220), (3, 10563480), (4, 7922610), (5, 6338088), (6, 5281740), (8, 3961305), (9, 3521160), (10, 3169044), (12, 2640870), (15, 2112696), (18, 1760580), (20, 1584522), (24, 1320435), (27, 1173720), (30, 1056348), (36, 880290), (40, 792261), (45, 704232), (54, 586860), (60, 528174), (72, 440145), (81, 391240), (90, 352116), (108, 293430), (120, 264087), (135, 234744), (162, 195620), (180, 176058), (216, 146715), (270, 117372), (324, 97810), (360, 88029), (405, 78248), (540, 58686), (648, 48905), (810, 39124), (1080, 29343), (1620, 19562), (3240, 9781)]