208024520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1123}}^1$

素因数の和:1566

約数の個数: 64

約数和(自身を含む): 512274240

約数和(自身を除く): 304249720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 421, 440, 842, 1123, 1684, 2105, 2246, 3368, 4210, 4492, 4631, 5615, 8420, 8984, 9262, 11230, 12353, 16840, 18524, 22460, 23155, 24706, 37048, 44920, 46310, 49412, 61765, 92620, 98824, 123530, 185240, 247060, 472783, 494120, 945566, 1891132, 2363915, 3782264, 4727830, 5200613, 9455660, 10401226, 18911320, 20802452, 26003065, 41604904, 52006130, 104012260, 208024520]

約数ペア:

[(1, 208024520), (2, 104012260), (4, 52006130), (5, 41604904), (8, 26003065), (10, 20802452), (11, 18911320), (20, 10401226), (22, 9455660), (40, 5200613), (44, 4727830), (55, 3782264), (88, 2363915), (110, 1891132), (220, 945566), (421, 494120), (440, 472783), (842, 247060), (1123, 185240), (1684, 123530), (2105, 98824), (2246, 92620), (3368, 61765), (4210, 49412), (4492, 46310), (4631, 44920), (5615, 37048), (8420, 24706), (8984, 23155), (9262, 22460), (11230, 18524), (12353, 16840)]