254334520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1373}}^1$

素因数の和:1816

約数の個数: 64

約数和(自身を含む): 626214240

約数和(自身を除く): 371879720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 421, 440, 842, 1373, 1684, 2105, 2746, 3368, 4210, 4631, 5492, 6865, 8420, 9262, 10984, 13730, 15103, 16840, 18524, 23155, 27460, 30206, 37048, 46310, 54920, 60412, 75515, 92620, 120824, 151030, 185240, 302060, 578033, 604120, 1156066, 2312132, 2890165, 4624264, 5780330, 6358363, 11560660, 12716726, 23121320, 25433452, 31791815, 50866904, 63583630, 127167260, 254334520]

約数ペア:

[(1, 254334520), (2, 127167260), (4, 63583630), (5, 50866904), (8, 31791815), (10, 25433452), (11, 23121320), (20, 12716726), (22, 11560660), (40, 6358363), (44, 5780330), (55, 4624264), (88, 2890165), (110, 2312132), (220, 1156066), (421, 604120), (440, 578033), (842, 302060), (1373, 185240), (1684, 151030), (2105, 120824), (2746, 92620), (3368, 75515), (4210, 60412), (4631, 54920), (5492, 46310), (6865, 37048), (8420, 30206), (9262, 27460), (10984, 23155), (13730, 18524), (15103, 16840)]