216087880

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{11821}}^1$

素因数の和:12289

約数の個数: 32

約数和(自身を含む): 487302840

約数和(自身を除く): 271214960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2285, 3656, 4570, 9140, 11821, 18280, 23642, 47284, 59105, 94568, 118210, 236420, 472840, 5402197, 10804394, 21608788, 27010985, 43217576, 54021970, 108043940, 216087880]

約数ペア:

[(1, 216087880), (2, 108043940), (4, 54021970), (5, 43217576), (8, 27010985), (10, 21608788), (20, 10804394), (40, 5402197), (457, 472840), (914, 236420), (1828, 118210), (2285, 94568), (3656, 59105), (4570, 47284), (9140, 23642), (11821, 18280)]