18207890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1571}}^1$

素因数の和:1658

約数の個数: 32

約数和(自身を含む): 35087040

約数和(自身を除く): 16879150

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 1571, 2318, 3142, 5795, 7855, 11590, 15710, 29849, 59698, 95831, 149245, 191662, 298490, 479155, 958310, 1820789, 3641578, 9103945, 18207890]

約数ペア:

[(1, 18207890), (2, 9103945), (5, 3641578), (10, 1820789), (19, 958310), (38, 479155), (61, 298490), (95, 191662), (122, 149245), (190, 95831), (305, 59698), (610, 29849), (1159, 15710), (1571, 11590), (2318, 7855), (3142, 5795)]