289078640

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{11399}}^1$

素因数の和:11729

約数の個数: 40

約数和(自身を含む): 674287200

約数和(自身を除く): 385208560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 1268, 1585, 2536, 3170, 5072, 6340, 11399, 12680, 22798, 25360, 45596, 56995, 91192, 113990, 182384, 227980, 455960, 911920, 3613483, 7226966, 14453932, 18067415, 28907864, 36134830, 57815728, 72269660, 144539320, 289078640]

約数ペア:

[(1, 289078640), (2, 144539320), (4, 72269660), (5, 57815728), (8, 36134830), (10, 28907864), (16, 18067415), (20, 14453932), (40, 7226966), (80, 3613483), (317, 911920), (634, 455960), (1268, 227980), (1585, 182384), (2536, 113990), (3170, 91192), (5072, 56995), (6340, 45596), (11399, 25360), (12680, 22798)]