18937620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8093}}^1$

素因数の和:8121

約数の個数: 72

約数和(自身を含む): 61870536

約数和(自身を除く): 42932916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8093, 16186, 24279, 32372, 40465, 48558, 72837, 80930, 97116, 105209, 121395, 145674, 161860, 210418, 242790, 291348, 315627, 364185, 420836, 485580, 526045, 631254, 728370, 946881, 1052090, 1262508, 1456740, 1578135, 1893762, 2104180, 3156270, 3787524, 4734405, 6312540, 9468810, 18937620]

約数ペア:

[(1, 18937620), (2, 9468810), (3, 6312540), (4, 4734405), (5, 3787524), (6, 3156270), (9, 2104180), (10, 1893762), (12, 1578135), (13, 1456740), (15, 1262508), (18, 1052090), (20, 946881), (26, 728370), (30, 631254), (36, 526045), (39, 485580), (45, 420836), (52, 364185), (60, 315627), (65, 291348), (78, 242790), (90, 210418), (117, 161860), (130, 145674), (156, 121395), (180, 105209), (195, 97116), (234, 80930), (260, 72837), (390, 48558), (468, 40465), (585, 32372), (780, 24279), (1170, 16186), (2340, 8093)]