19405460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 43276800

約数和(自身を除く): 23871340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 223, 229, 380, 446, 458, 892, 916, 1115, 1145, 2230, 2290, 4237, 4351, 4460, 4580, 8474, 8702, 16948, 17404, 21185, 21755, 42370, 43510, 51067, 84740, 87020, 102134, 204268, 255335, 510670, 970273, 1021340, 1940546, 3881092, 4851365, 9702730, 19405460]

約数ペア:

[(1, 19405460), (2, 9702730), (4, 4851365), (5, 3881092), (10, 1940546), (19, 1021340), (20, 970273), (38, 510670), (76, 255335), (95, 204268), (190, 102134), (223, 87020), (229, 84740), (380, 51067), (446, 43510), (458, 42370), (892, 21755), (916, 21185), (1115, 17404), (1145, 16948), (2230, 8702), (2290, 8474), (4237, 4580), (4351, 4460)]