20147358640

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{889901}}^1$

素因数の和:890197

約数の個数: 40

約数和(自身を含む): 47008183248

約数和(自身を除く): 26860824608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 1132, 1415, 2264, 2830, 4528, 5660, 11320, 22640, 889901, 1779802, 3559604, 4449505, 7119208, 8899010, 14238416, 17798020, 35596040, 71192080, 251841983, 503683966, 1007367932, 1259209915, 2014735864, 2518419830, 4029471728, 5036839660, 10073679320, 20147358640]

約数ペア:

[(1, 20147358640), (2, 10073679320), (4, 5036839660), (5, 4029471728), (8, 2518419830), (10, 2014735864), (16, 1259209915), (20, 1007367932), (40, 503683966), (80, 251841983), (283, 71192080), (566, 35596040), (1132, 17798020), (1415, 14238416), (2264, 8899010), (2830, 7119208), (4528, 4449505), (5660, 3559604), (11320, 1779802), (22640, 889901)]