18930820

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{5807}}^1$

素因数の和:5979

約数の個数: 24

約数和(自身を含む): 40005504

約数和(自身を除く): 21074684

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 5807, 11614, 23228, 29035, 58070, 116140, 946541, 1893082, 3786164, 4732705, 9465410, 18930820]

約数ペア:

[(1, 18930820), (2, 9465410), (4, 4732705), (5, 3786164), (10, 1893082), (20, 946541), (163, 116140), (326, 58070), (652, 29035), (815, 23228), (1630, 11614), (3260, 5807)]