9986020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2389}}^1$

素因数の和:2428

約数の個数: 48

約数和(自身を含む): 24091200

約数和(自身を除く): 14105180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 2389, 4180, 4778, 9556, 11945, 23890, 26279, 45391, 47780, 52558, 90782, 105116, 131395, 181564, 226955, 262790, 453910, 499301, 525580, 907820, 998602, 1997204, 2496505, 4993010, 9986020]

約数ペア:

[(1, 9986020), (2, 4993010), (4, 2496505), (5, 1997204), (10, 998602), (11, 907820), (19, 525580), (20, 499301), (22, 453910), (38, 262790), (44, 226955), (55, 181564), (76, 131395), (95, 105116), (110, 90782), (190, 52558), (209, 47780), (220, 45391), (380, 26279), (418, 23890), (836, 11945), (1045, 9556), (2090, 4778), (2389, 4180)]