145540040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117371}}^1$

素因数の和:117413

約数の個数: 32

約数和(自身を含む): 338031360

約数和(自身を除く): 192491320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 117371, 234742, 469484, 586855, 938968, 1173710, 2347420, 3638501, 4694840, 7277002, 14554004, 18192505, 29108008, 36385010, 72770020, 145540040]

約数ペア:

[(1, 145540040), (2, 72770020), (4, 36385010), (5, 29108008), (8, 18192505), (10, 14554004), (20, 7277002), (31, 4694840), (40, 3638501), (62, 2347420), (124, 1173710), (155, 938968), (248, 586855), (310, 469484), (620, 234742), (1240, 117371)]