64920285

素因数分解:

$3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1021}}^1$

素因数の和:1195

約数の個数: 40

約数和(自身を含む): 117231576

約数和(自身を除く): 52311291

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 157, 405, 471, 785, 1021, 1413, 2355, 3063, 4239, 5105, 7065, 9189, 12717, 15315, 21195, 27567, 45945, 63585, 82701, 137835, 160297, 413505, 480891, 801485, 1442673, 2404455, 4328019, 7213365, 12984057, 21640095, 64920285]

約数ペア:

[(1, 64920285), (3, 21640095), (5, 12984057), (9, 7213365), (15, 4328019), (27, 2404455), (45, 1442673), (81, 801485), (135, 480891), (157, 413505), (405, 160297), (471, 137835), (785, 82701), (1021, 63585), (1413, 45945), (2355, 27567), (3063, 21195), (4239, 15315), (5105, 12717), (7065, 9189)]