20175285

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:837

約数の個数: 32

約数和(自身を含む): 35038080

約数和(自身を除く): 14862795

約数列:

[1, 3, 5, 13, 15, 39, 65, 157, 195, 471, 659, 785, 1977, 2041, 2355, 3295, 6123, 8567, 9885, 10205, 25701, 30615, 42835, 103463, 128505, 310389, 517315, 1345019, 1551945, 4035057, 6725095, 20175285]

約数ペア:

[(1, 20175285), (3, 6725095), (5, 4035057), (13, 1551945), (15, 1345019), (39, 517315), (65, 310389), (157, 128505), (195, 103463), (471, 42835), (659, 30615), (785, 25701), (1977, 10205), (2041, 9885), (2355, 8567), (3295, 6123)]