8401294420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{238267}}^1$

素因数の和:238360

約数の個数: 48

約数和(自身を含む): 18493409088

約数和(自身を除く): 10092114668

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 3526, 7052, 8815, 17630, 35260, 238267, 476534, 953068, 1191335, 2382670, 4765340, 9768947, 10245481, 19537894, 20490962, 39075788, 40981924, 48844735, 51227405, 97689470, 102454810, 195378940, 204909620, 420064721, 840129442, 1680258884, 2100323605, 4200647210, 8401294420]

約数ペア:

[(1, 8401294420), (2, 4200647210), (4, 2100323605), (5, 1680258884), (10, 840129442), (20, 420064721), (41, 204909620), (43, 195378940), (82, 102454810), (86, 97689470), (164, 51227405), (172, 48844735), (205, 40981924), (215, 39075788), (410, 20490962), (430, 19537894), (820, 10245481), (860, 9768947), (1763, 4765340), (3526, 2382670), (7052, 1191335), (8815, 953068), (17630, 476534), (35260, 238267)]