28654520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42139}}^1$

素因数の和:42167

約数の個数: 32

約数和(自身を含む): 68266800

約数和(自身を除く): 39612280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42139, 84278, 168556, 210695, 337112, 421390, 716363, 842780, 1432726, 1685560, 2865452, 3581815, 5730904, 7163630, 14327260, 28654520]

約数ペア:

[(1, 28654520), (2, 14327260), (4, 7163630), (5, 5730904), (8, 3581815), (10, 2865452), (17, 1685560), (20, 1432726), (34, 842780), (40, 716363), (68, 421390), (85, 337112), (136, 210695), (170, 168556), (340, 84278), (680, 42139)]