15918100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 39060000

約数和(自身を除く): 23141900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 100, 110, 116, 145, 220, 275, 290, 319, 499, 550, 580, 638, 725, 998, 1100, 1276, 1450, 1595, 1996, 2495, 2900, 3190, 4990, 5489, 6380, 7975, 9980, 10978, 12475, 14471, 15950, 21956, 24950, 27445, 28942, 31900, 49900, 54890, 57884, 72355, 109780, 137225, 144710, 159181, 274450, 289420, 318362, 361775, 548900, 636724, 723550, 795905, 1447100, 1591810, 3183620, 3979525, 7959050, 15918100]

約数ペア:

[(1, 15918100), (2, 7959050), (4, 3979525), (5, 3183620), (10, 1591810), (11, 1447100), (20, 795905), (22, 723550), (25, 636724), (29, 548900), (44, 361775), (50, 318362), (55, 289420), (58, 274450), (100, 159181), (110, 144710), (116, 137225), (145, 109780), (220, 72355), (275, 57884), (290, 54890), (319, 49900), (499, 31900), (550, 28942), (580, 27445), (638, 24950), (725, 21956), (998, 15950), (1100, 14471), (1276, 12475), (1450, 10978), (1595, 9980), (1996, 7975), (2495, 6380), (2900, 5489), (3190, 4990)]