81182050

素因数分解:

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

素因数の和:451

約数の個数: 36

約数和(自身を含む): 155462706

約数和(自身を除く): 74280656

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 199, 205, 398, 410, 995, 1025, 1990, 2050, 4975, 8159, 9950, 16318, 39601, 40795, 79202, 81590, 198005, 203975, 396010, 407950, 990025, 1623641, 1980050, 3247282, 8118205, 16236410, 40591025, 81182050]

約数ペア:

[(1, 81182050), (2, 40591025), (5, 16236410), (10, 8118205), (25, 3247282), (41, 1980050), (50, 1623641), (82, 990025), (199, 407950), (205, 396010), (398, 203975), (410, 198005), (995, 81590), (1025, 79202), (1990, 40795), (2050, 39601), (4975, 16318), (8159, 9950)]