40021240

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2917}}^1$

素因数の和:2949

約数の個数: 64

約数和(自身を含む): 105048000

約数和(自身を除く): 65026760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 2917, 3430, 5834, 6860, 11668, 13720, 14585, 20419, 23336, 29170, 40838, 58340, 81676, 102095, 116680, 142933, 163352, 204190, 285866, 408380, 571732, 714665, 816760, 1000531, 1143464, 1429330, 2001062, 2858660, 4002124, 5002655, 5717320, 8004248, 10005310, 20010620, 40021240]

約数ペア:

[(1, 40021240), (2, 20010620), (4, 10005310), (5, 8004248), (7, 5717320), (8, 5002655), (10, 4002124), (14, 2858660), (20, 2001062), (28, 1429330), (35, 1143464), (40, 1000531), (49, 816760), (56, 714665), (70, 571732), (98, 408380), (140, 285866), (196, 204190), (245, 163352), (280, 142933), (343, 116680), (392, 102095), (490, 81676), (686, 58340), (980, 40838), (1372, 29170), (1715, 23336), (1960, 20419), (2744, 14585), (2917, 13720), (3430, 11668), (5834, 6860)]