31999984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1657}}^1$

素因数の和:1753

約数の個数: 40

約数和(自身を含む): 66611808

約数和(自身を除く): 34611824

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 142, 272, 284, 568, 1136, 1207, 1657, 2414, 3314, 4828, 6628, 9656, 13256, 19312, 26512, 28169, 56338, 112676, 117647, 225352, 235294, 450704, 470588, 941176, 1882352, 1999999, 3999998, 7999996, 15999992, 31999984]

約数ペア:

[(1, 31999984), (2, 15999992), (4, 7999996), (8, 3999998), (16, 1999999), (17, 1882352), (34, 941176), (68, 470588), (71, 450704), (136, 235294), (142, 225352), (272, 117647), (284, 112676), (568, 56338), (1136, 28169), (1207, 26512), (1657, 19312), (2414, 13256), (3314, 9656), (4828, 6628)]