78508880

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4651}}^1$

素因数の和:4875

約数の個数: 40

約数和(自身を含む): 183437664

約数和(自身を除く): 104928784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 4651, 8440, 9302, 16880, 18604, 23255, 37208, 46510, 74416, 93020, 186040, 372080, 981361, 1962722, 3925444, 4906805, 7850888, 9813610, 15701776, 19627220, 39254440, 78508880]

約数ペア:

[(1, 78508880), (2, 39254440), (4, 19627220), (5, 15701776), (8, 9813610), (10, 7850888), (16, 4906805), (20, 3925444), (40, 1962722), (80, 981361), (211, 372080), (422, 186040), (844, 93020), (1055, 74416), (1688, 46510), (2110, 37208), (3376, 23255), (4220, 18604), (4651, 16880), (8440, 9302)]