220846640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{394369}}^1$

素因数の和:394389

約数の個数: 40

約数和(自身を含む): 586822560

約数和(自身を除く): 365975920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 394369, 788738, 1577476, 1971845, 2760583, 3154952, 3943690, 5521166, 6309904, 7887380, 11042332, 13802915, 15774760, 22084664, 27605830, 31549520, 44169328, 55211660, 110423320, 220846640]

約数ペア:

[(1, 220846640), (2, 110423320), (4, 55211660), (5, 44169328), (7, 31549520), (8, 27605830), (10, 22084664), (14, 15774760), (16, 13802915), (20, 11042332), (28, 7887380), (35, 6309904), (40, 5521166), (56, 3943690), (70, 3154952), (80, 2760583), (112, 1971845), (140, 1577476), (280, 788738), (560, 394369)]