28751505

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{823}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 49123584

約数和(自身を除く): 20372079

約数列:

[1, 3, 5, 15, 17, 51, 85, 137, 255, 411, 685, 823, 2055, 2329, 2469, 4115, 6987, 11645, 12345, 13991, 34935, 41973, 69955, 112751, 209865, 338253, 563755, 1691265, 1916767, 5750301, 9583835, 28751505]

約数ペア:

[(1, 28751505), (3, 9583835), (5, 5750301), (15, 1916767), (17, 1691265), (51, 563755), (85, 338253), (137, 209865), (255, 112751), (411, 69955), (685, 41973), (823, 34935), (2055, 13991), (2329, 12345), (2469, 11645), (4115, 6987)]