87916780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{283}}^1\times {\mathrm{317}}^1$

素因数の和:623

約数の個数: 72

約数和(自身を含む): 216206928

約数和(自身を除く): 128290148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 283, 317, 490, 566, 634, 980, 1132, 1268, 1415, 1585, 1981, 2219, 2830, 3170, 3962, 4438, 5660, 6340, 7924, 8876, 9905, 11095, 13867, 15533, 19810, 22190, 27734, 31066, 39620, 44380, 55468, 62132, 69335, 77665, 89711, 138670, 155330, 179422, 277340, 310660, 358844, 448555, 627977, 897110, 1255954, 1794220, 2511908, 3139885, 4395839, 6279770, 8791678, 12559540, 17583356, 21979195, 43958390, 87916780]

約数ペア:

[(1, 87916780), (2, 43958390), (4, 21979195), (5, 17583356), (7, 12559540), (10, 8791678), (14, 6279770), (20, 4395839), (28, 3139885), (35, 2511908), (49, 1794220), (70, 1255954), (98, 897110), (140, 627977), (196, 448555), (245, 358844), (283, 310660), (317, 277340), (490, 179422), (566, 155330), (634, 138670), (980, 89711), (1132, 77665), (1268, 69335), (1415, 62132), (1585, 55468), (1981, 44380), (2219, 39620), (2830, 31066), (3170, 27734), (3962, 22190), (4438, 19810), (5660, 15533), (6340, 13867), (7924, 11095), (8876, 9905)]