220898680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1\times {\mathrm{577}}^1$

素因数の和:1168

約数の個数: 64

約数和(自身を含む): 528107040

約数和(自身を除く): 307208360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 563, 577, 680, 1126, 1154, 2252, 2308, 2815, 2885, 4504, 4616, 5630, 5770, 9571, 9809, 11260, 11540, 19142, 19618, 22520, 23080, 38284, 39236, 47855, 49045, 76568, 78472, 95710, 98090, 191420, 196180, 324851, 382840, 392360, 649702, 1299404, 1624255, 2598808, 3248510, 5522467, 6497020, 11044934, 12994040, 22089868, 27612335, 44179736, 55224670, 110449340, 220898680]

約数ペア:

[(1, 220898680), (2, 110449340), (4, 55224670), (5, 44179736), (8, 27612335), (10, 22089868), (17, 12994040), (20, 11044934), (34, 6497020), (40, 5522467), (68, 3248510), (85, 2598808), (136, 1624255), (170, 1299404), (340, 649702), (563, 392360), (577, 382840), (680, 324851), (1126, 196180), (1154, 191420), (2252, 98090), (2308, 95710), (2815, 78472), (2885, 76568), (4504, 49045), (4616, 47855), (5630, 39236), (5770, 38284), (9571, 23080), (9809, 22520), (11260, 19618), (11540, 19142)]