28470520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54751}}^1$

素因数の和:54775

約数の個数: 32

約数和(自身を含む): 68987520

約数和(自身を除く): 40517000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 54751, 109502, 219004, 273755, 438008, 547510, 711763, 1095020, 1423526, 2190040, 2847052, 3558815, 5694104, 7117630, 14235260, 28470520]

約数ペア:

[(1, 28470520), (2, 14235260), (4, 7117630), (5, 5694104), (8, 3558815), (10, 2847052), (13, 2190040), (20, 1423526), (26, 1095020), (40, 711763), (52, 547510), (65, 438008), (104, 273755), (130, 219004), (260, 109502), (520, 54751)]