4020375

素因数分解:

$3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 6829056

約数和(自身を除く): 2808681

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 151, 213, 355, 375, 453, 755, 1065, 1775, 2265, 3775, 5325, 8875, 10721, 11325, 18875, 26625, 32163, 53605, 56625, 160815, 268025, 804075, 1340125, 4020375]

約数ペア:

[(1, 4020375), (3, 1340125), (5, 804075), (15, 268025), (25, 160815), (71, 56625), (75, 53605), (125, 32163), (151, 26625), (213, 18875), (355, 11325), (375, 10721), (453, 8875), (755, 5325), (1065, 3775), (1775, 2265)]