40781640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19991}}^1$

素因数の和:20022

約数の個数: 64

約数和(自身を含む): 129548160

約数和(自身を除く): 88766520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 19991, 39982, 59973, 79964, 99955, 119946, 159928, 199910, 239892, 299865, 339847, 399820, 479784, 599730, 679694, 799640, 1019541, 1199460, 1359388, 1699235, 2039082, 2398920, 2718776, 3398470, 4078164, 5097705, 6796940, 8156328, 10195410, 13593880, 20390820, 40781640]

約数ペア:

[(1, 40781640), (2, 20390820), (3, 13593880), (4, 10195410), (5, 8156328), (6, 6796940), (8, 5097705), (10, 4078164), (12, 3398470), (15, 2718776), (17, 2398920), (20, 2039082), (24, 1699235), (30, 1359388), (34, 1199460), (40, 1019541), (51, 799640), (60, 679694), (68, 599730), (85, 479784), (102, 399820), (120, 339847), (136, 299865), (170, 239892), (204, 199910), (255, 159928), (340, 119946), (408, 99955), (510, 79964), (680, 59973), (1020, 39982), (2040, 19991)]