20265115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 28123200

約数和(自身を除く): 7858085

約数列:

[1, 5, 13, 19, 61, 65, 95, 247, 269, 305, 793, 1159, 1235, 1345, 3497, 3965, 5111, 5795, 15067, 16409, 17485, 25555, 66443, 75335, 82045, 213317, 311771, 332215, 1066585, 1558855, 4053023, 20265115]

約数ペア:

[(1, 20265115), (5, 4053023), (13, 1558855), (19, 1066585), (61, 332215), (65, 311771), (95, 213317), (247, 82045), (269, 75335), (305, 66443), (793, 25555), (1159, 17485), (1235, 16409), (1345, 15067), (3497, 5795), (3965, 5111)]