1640803875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{257381}}^1$

素因数の和:257416

約数の個数: 32

約数和(自身を含む): 2890914624

約数和(自身を除く): 1250110749

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 6375, 257381, 772143, 1286905, 3860715, 4375477, 6434525, 13126431, 19303575, 21877385, 32172625, 65632155, 96517875, 109386925, 328160775, 546934625, 1640803875]

約数ペア:

[(1, 1640803875), (3, 546934625), (5, 328160775), (15, 109386925), (17, 96517875), (25, 65632155), (51, 32172625), (75, 21877385), (85, 19303575), (125, 13126431), (255, 6434525), (375, 4375477), (425, 3860715), (1275, 1286905), (2125, 772143), (6375, 257381)]