31716560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23321}}^1$

素因数の和:23351

約数の個数: 40

約数和(自身を含む): 78082056

約数和(自身を除く): 46365496

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 23321, 46642, 93284, 116605, 186568, 233210, 373136, 396457, 466420, 792914, 932840, 1585828, 1865680, 1982285, 3171656, 3964570, 6343312, 7929140, 15858280, 31716560]

約数ペア:

[(1, 31716560), (2, 15858280), (4, 7929140), (5, 6343312), (8, 3964570), (10, 3171656), (16, 1982285), (17, 1865680), (20, 1585828), (34, 932840), (40, 792914), (68, 466420), (80, 396457), (85, 373136), (136, 233210), (170, 186568), (272, 116605), (340, 93284), (680, 46642), (1360, 23321)]