99213820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{261089}}^1$

素因数の和:261117

約数の個数: 24

約数和(自身を含む): 219315600

約数和(自身を除く): 120101780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 261089, 522178, 1044356, 1305445, 2610890, 4960691, 5221780, 9921382, 19842764, 24803455, 49606910, 99213820]

約数ペア:

[(1, 99213820), (2, 49606910), (4, 24803455), (5, 19842764), (10, 9921382), (19, 5221780), (20, 4960691), (38, 2610890), (76, 1305445), (95, 1044356), (190, 522178), (380, 261089)]