80137960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{569}}^1$

素因数の和:1090

約数の個数: 64

約数和(自身を含む): 206841600

約数和(自身を除く): 126703640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 503, 569, 1006, 1138, 2012, 2276, 2515, 2845, 3521, 3983, 4024, 4552, 5030, 5690, 7042, 7966, 10060, 11380, 14084, 15932, 17605, 19915, 20120, 22760, 28168, 31864, 35210, 39830, 70420, 79660, 140840, 159320, 286207, 572414, 1144828, 1431035, 2003449, 2289656, 2862070, 4006898, 5724140, 8013796, 10017245, 11448280, 16027592, 20034490, 40068980, 80137960]

約数ペア:

[(1, 80137960), (2, 40068980), (4, 20034490), (5, 16027592), (7, 11448280), (8, 10017245), (10, 8013796), (14, 5724140), (20, 4006898), (28, 2862070), (35, 2289656), (40, 2003449), (56, 1431035), (70, 1144828), (140, 572414), (280, 286207), (503, 159320), (569, 140840), (1006, 79660), (1138, 70420), (2012, 39830), (2276, 35210), (2515, 31864), (2845, 28168), (3521, 22760), (3983, 20120), (4024, 19915), (4552, 17605), (5030, 15932), (5690, 14084), (7042, 11380), (7966, 10060)]