90972850

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 174988800

約数和(自身を除く): 84015950

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 199, 205, 223, 398, 410, 446, 995, 1025, 1115, 1990, 2050, 2230, 4975, 5575, 8159, 9143, 9950, 11150, 16318, 18286, 40795, 44377, 45715, 81590, 88754, 91430, 203975, 221885, 228575, 407950, 443770, 457150, 1109425, 1819457, 2218850, 3638914, 9097285, 18194570, 45486425, 90972850]

約数ペア:

[(1, 90972850), (2, 45486425), (5, 18194570), (10, 9097285), (25, 3638914), (41, 2218850), (50, 1819457), (82, 1109425), (199, 457150), (205, 443770), (223, 407950), (398, 228575), (410, 221885), (446, 203975), (995, 91430), (1025, 88754), (1115, 81590), (1990, 45715), (2050, 44377), (2230, 40795), (4975, 18286), (5575, 16318), (8159, 11150), (9143, 9950)]