18880030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8543}}^1$

素因数の和:8580

約数の個数: 32

約数和(自身を含む): 38755584

約数和(自身を除く): 19875554

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 8543, 17086, 42715, 85430, 111059, 145231, 222118, 290462, 555295, 726155, 1110590, 1452310, 1888003, 3776006, 9440015, 18880030]

約数ペア:

[(1, 18880030), (2, 9440015), (5, 3776006), (10, 1888003), (13, 1452310), (17, 1110590), (26, 726155), (34, 555295), (65, 290462), (85, 222118), (130, 145231), (170, 111059), (221, 85430), (442, 42715), (1105, 17086), (2210, 8543)]