30731025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{733}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 56065856

約数和(自身を除く): 25334831

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 195, 215, 325, 559, 645, 733, 975, 1075, 1677, 2199, 2795, 3225, 3665, 8385, 9529, 10995, 13975, 18325, 28587, 31519, 41925, 47645, 54975, 94557, 142935, 157595, 238225, 409747, 472785, 714675, 787975, 1229241, 2048735, 2363925, 6146205, 10243675, 30731025]

約数ペア:

[(1, 30731025), (3, 10243675), (5, 6146205), (13, 2363925), (15, 2048735), (25, 1229241), (39, 787975), (43, 714675), (65, 472785), (75, 409747), (129, 238225), (195, 157595), (215, 142935), (325, 94557), (559, 54975), (645, 47645), (733, 41925), (975, 31519), (1075, 28587), (1677, 18325), (2199, 13975), (2795, 10995), (3225, 9529), (3665, 8385)]