261233360

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{10301}}^1$

素因数の和:10631

約数の個数: 40

約数和(自身を含む): 609342696

約数和(自身を除く): 348109336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 1268, 1585, 2536, 3170, 5072, 6340, 10301, 12680, 20602, 25360, 41204, 51505, 82408, 103010, 164816, 206020, 412040, 824080, 3265417, 6530834, 13061668, 16327085, 26123336, 32654170, 52246672, 65308340, 130616680, 261233360]

約数ペア:

[(1, 261233360), (2, 130616680), (4, 65308340), (5, 52246672), (8, 32654170), (10, 26123336), (16, 16327085), (20, 13061668), (40, 6530834), (80, 3265417), (317, 824080), (634, 412040), (1268, 206020), (1585, 164816), (2536, 103010), (3170, 82408), (5072, 51505), (6340, 41204), (10301, 25360), (12680, 20602)]