28460720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1231}}^1$

素因数の和:1278

約数の個数: 60

約数和(自身を含む): 70349664

約数和(自身を除く): 41888944

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 578, 680, 1156, 1231, 1360, 1445, 2312, 2462, 2890, 4624, 4924, 5780, 6155, 9848, 11560, 12310, 19696, 20927, 23120, 24620, 41854, 49240, 83708, 98480, 104635, 167416, 209270, 334832, 355759, 418540, 711518, 837080, 1423036, 1674160, 1778795, 2846072, 3557590, 5692144, 7115180, 14230360, 28460720]

約数ペア:

[(1, 28460720), (2, 14230360), (4, 7115180), (5, 5692144), (8, 3557590), (10, 2846072), (16, 1778795), (17, 1674160), (20, 1423036), (34, 837080), (40, 711518), (68, 418540), (80, 355759), (85, 334832), (136, 209270), (170, 167416), (272, 104635), (289, 98480), (340, 83708), (578, 49240), (680, 41854), (1156, 24620), (1231, 23120), (1360, 20927), (1445, 19696), (2312, 12310), (2462, 11560), (2890, 9848), (4624, 6155), (4924, 5780)]