89641540

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 191923200

約数和(自身を除く): 102281660

約数列:

[1, 2, 4, 5, 10, 20, 101, 199, 202, 223, 398, 404, 446, 505, 796, 892, 995, 1010, 1115, 1990, 2020, 2230, 3980, 4460, 20099, 22523, 40198, 44377, 45046, 80396, 88754, 90092, 100495, 112615, 177508, 200990, 221885, 225230, 401980, 443770, 450460, 887540, 4482077, 8964154, 17928308, 22410385, 44820770, 89641540]

約数ペア:

[(1, 89641540), (2, 44820770), (4, 22410385), (5, 17928308), (10, 8964154), (20, 4482077), (101, 887540), (199, 450460), (202, 443770), (223, 401980), (398, 225230), (404, 221885), (446, 200990), (505, 177508), (796, 112615), (892, 100495), (995, 90092), (1010, 88754), (1115, 80396), (1990, 45046), (2020, 44377), (2230, 40198), (3980, 22523), (4460, 20099)]