156680240

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4421}}^1$

素因数の和:4877

約数の個数: 40

約数和(自身を含む): 365186448

約数和(自身を除く): 208506208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 886, 1772, 2215, 3544, 4421, 4430, 7088, 8842, 8860, 17684, 17720, 22105, 35368, 35440, 44210, 70736, 88420, 176840, 353680, 1958503, 3917006, 7834012, 9792515, 15668024, 19585030, 31336048, 39170060, 78340120, 156680240]

約数ペア:

[(1, 156680240), (2, 78340120), (4, 39170060), (5, 31336048), (8, 19585030), (10, 15668024), (16, 9792515), (20, 7834012), (40, 3917006), (80, 1958503), (443, 353680), (886, 176840), (1772, 88420), (2215, 70736), (3544, 44210), (4421, 35440), (4430, 35368), (7088, 22105), (8842, 17720), (8860, 17684)]