20955700

素因数分解:

$2^2\times 5^2\times {\mathrm{367}}^1\times {\mathrm{571}}^1$

素因数の和:952

約数の個数: 36

約数和(自身を含む): 45677632

約数和(自身を除く): 24721932

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 367, 571, 734, 1142, 1468, 1835, 2284, 2855, 3670, 5710, 7340, 9175, 11420, 14275, 18350, 28550, 36700, 57100, 209557, 419114, 838228, 1047785, 2095570, 4191140, 5238925, 10477850, 20955700]

約数ペア:

[(1, 20955700), (2, 10477850), (4, 5238925), (5, 4191140), (10, 2095570), (20, 1047785), (25, 838228), (50, 419114), (100, 209557), (367, 57100), (571, 36700), (734, 28550), (1142, 18350), (1468, 14275), (1835, 11420), (2284, 9175), (2855, 7340), (3670, 5710)]