81588260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{2777}}^1$

素因数の和:2912

約数の個数: 48

約数和(自身を含む): 186214896

約数和(自身を除く): 104626636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 1130, 1469, 2260, 2777, 2938, 5554, 5876, 7345, 11108, 13885, 14690, 27770, 29380, 36101, 55540, 72202, 144404, 180505, 313801, 361010, 627602, 722020, 1255204, 1569005, 3138010, 4079413, 6276020, 8158826, 16317652, 20397065, 40794130, 81588260]

約数ペア:

[(1, 81588260), (2, 40794130), (4, 20397065), (5, 16317652), (10, 8158826), (13, 6276020), (20, 4079413), (26, 3138010), (52, 1569005), (65, 1255204), (113, 722020), (130, 627602), (226, 361010), (260, 313801), (452, 180505), (565, 144404), (1130, 72202), (1469, 55540), (2260, 36101), (2777, 29380), (2938, 27770), (5554, 14690), (5876, 13885), (7345, 11108)]