18079150

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 35712000

約数和(自身を除く): 17632850

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 79, 115, 158, 199, 230, 395, 398, 575, 790, 995, 1150, 1817, 1975, 1990, 3634, 3950, 4577, 4975, 9085, 9154, 9950, 15721, 18170, 22885, 31442, 45425, 45770, 78605, 90850, 114425, 157210, 228850, 361583, 393025, 723166, 786050, 1807915, 3615830, 9039575, 18079150]

約数ペア:

[(1, 18079150), (2, 9039575), (5, 3615830), (10, 1807915), (23, 786050), (25, 723166), (46, 393025), (50, 361583), (79, 228850), (115, 157210), (158, 114425), (199, 90850), (230, 78605), (395, 45770), (398, 45425), (575, 31442), (790, 22885), (995, 18170), (1150, 15721), (1817, 9950), (1975, 9154), (1990, 9085), (3634, 4975), (3950, 4577)]