20892420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3137}}^1$

素因数の和:3189

約数の個数: 72

約数和(自身を含む): 65107224

約数和(自身を除く): 44214804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3137, 3330, 6274, 6660, 9411, 12548, 15685, 18822, 28233, 31370, 37644, 47055, 56466, 62740, 94110, 112932, 116069, 141165, 188220, 232138, 282330, 348207, 464276, 564660, 580345, 696414, 1044621, 1160690, 1392828, 1741035, 2089242, 2321380, 3482070, 4178484, 5223105, 6964140, 10446210, 20892420]

約数ペア:

[(1, 20892420), (2, 10446210), (3, 6964140), (4, 5223105), (5, 4178484), (6, 3482070), (9, 2321380), (10, 2089242), (12, 1741035), (15, 1392828), (18, 1160690), (20, 1044621), (30, 696414), (36, 580345), (37, 564660), (45, 464276), (60, 348207), (74, 282330), (90, 232138), (111, 188220), (148, 141165), (180, 116069), (185, 112932), (222, 94110), (333, 62740), (370, 56466), (444, 47055), (555, 37644), (666, 31370), (740, 28233), (1110, 18822), (1332, 15685), (1665, 12548), (2220, 9411), (3137, 6660), (3330, 6274)]