20157960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{971}}^1$

素因数の和:1158

約数の個数: 64

約数和(自身を含む): 60886080

約数和(自身を除く): 40728120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 971, 1038, 1384, 1730, 1942, 2076, 2595, 2913, 3460, 3884, 4152, 4855, 5190, 5826, 6920, 7768, 9710, 10380, 11652, 14565, 19420, 20760, 23304, 29130, 38840, 58260, 116520, 167983, 335966, 503949, 671932, 839915, 1007898, 1343864, 1679830, 2015796, 2519745, 3359660, 4031592, 5039490, 6719320, 10078980, 20157960]

約数ペア:

[(1, 20157960), (2, 10078980), (3, 6719320), (4, 5039490), (5, 4031592), (6, 3359660), (8, 2519745), (10, 2015796), (12, 1679830), (15, 1343864), (20, 1007898), (24, 839915), (30, 671932), (40, 503949), (60, 335966), (120, 167983), (173, 116520), (346, 58260), (519, 38840), (692, 29130), (865, 23304), (971, 20760), (1038, 19420), (1384, 14565), (1730, 11652), (1942, 10380), (2076, 9710), (2595, 7768), (2913, 6920), (3460, 5826), (3884, 5190), (4152, 4855)]