198919640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{216217}}^1$

素因数の和:216251

約数の個数: 32

約数和(自身を含む): 467030880

約数和(自身を除く): 268111240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 216217, 432434, 864868, 1081085, 1729736, 2162170, 4324340, 4972991, 8648680, 9945982, 19891964, 24864955, 39783928, 49729910, 99459820, 198919640]

約数ペア:

[(1, 198919640), (2, 99459820), (4, 49729910), (5, 39783928), (8, 24864955), (10, 19891964), (20, 9945982), (23, 8648680), (40, 4972991), (46, 4324340), (92, 2162170), (115, 1729736), (184, 1081085), (230, 864868), (460, 432434), (920, 216217)]