289084015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{809}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 388411200

約数和(自身を除く): 99327185

約数列:

[1, 5, 11, 55, 73, 89, 365, 445, 803, 809, 979, 4015, 4045, 4895, 6497, 8899, 32485, 44495, 59057, 71467, 72001, 295285, 357335, 360005, 649627, 792011, 3248135, 3960055, 5256073, 26280365, 57816803, 289084015]

約数ペア:

[(1, 289084015), (5, 57816803), (11, 26280365), (55, 5256073), (73, 3960055), (89, 3248135), (365, 792011), (445, 649627), (803, 360005), (809, 357335), (979, 295285), (4015, 72001), (4045, 71467), (4895, 59057), (6497, 44495), (8899, 32485)]