78375920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{809}}^1$

素因数の和:1002

約数の個数: 80

約数和(自身を含む): 209718720

約数和(自身を除く): 131342800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 173, 280, 346, 560, 692, 809, 865, 1211, 1384, 1618, 1730, 2422, 2768, 3236, 3460, 4045, 4844, 5663, 6055, 6472, 6920, 8090, 9688, 11326, 12110, 12944, 13840, 16180, 19376, 22652, 24220, 28315, 32360, 45304, 48440, 56630, 64720, 90608, 96880, 113260, 139957, 226520, 279914, 453040, 559828, 699785, 979699, 1119656, 1399570, 1959398, 2239312, 2799140, 3918796, 4898495, 5598280, 7837592, 9796990, 11196560, 15675184, 19593980, 39187960, 78375920]

約数ペア:

[(1, 78375920), (2, 39187960), (4, 19593980), (5, 15675184), (7, 11196560), (8, 9796990), (10, 7837592), (14, 5598280), (16, 4898495), (20, 3918796), (28, 2799140), (35, 2239312), (40, 1959398), (56, 1399570), (70, 1119656), (80, 979699), (112, 699785), (140, 559828), (173, 453040), (280, 279914), (346, 226520), (560, 139957), (692, 113260), (809, 96880), (865, 90608), (1211, 64720), (1384, 56630), (1618, 48440), (1730, 45304), (2422, 32360), (2768, 28315), (3236, 24220), (3460, 22652), (4045, 19376), (4844, 16180), (5663, 13840), (6055, 12944), (6472, 12110), (6920, 11326), (8090, 9688)]