291249790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{2543}}^1$

素因数の和:3444

約数の個数: 32

約数和(自身を含む): 565439616

約数和(自身を除く): 274189826

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 881, 1762, 2543, 4405, 5086, 8810, 11453, 12715, 22906, 25430, 33059, 57265, 66118, 114530, 165295, 330590, 2240383, 4480766, 11201915, 22403830, 29124979, 58249958, 145624895, 291249790]

約数ペア:

[(1, 291249790), (2, 145624895), (5, 58249958), (10, 29124979), (13, 22403830), (26, 11201915), (65, 4480766), (130, 2240383), (881, 330590), (1762, 165295), (2543, 114530), (4405, 66118), (5086, 57265), (8810, 33059), (11453, 25430), (12715, 22906)]