68985915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{2789}}^1$

素因数の和:2911

約数の個数: 32

約数和(自身を含む): 118117440

約数和(自身を除く): 49131525

約数列:

[1, 3, 5, 15, 17, 51, 85, 97, 255, 291, 485, 1455, 1649, 2789, 4947, 8245, 8367, 13945, 24735, 41835, 47413, 142239, 237065, 270533, 711195, 811599, 1352665, 4057995, 4599061, 13797183, 22995305, 68985915]

約数ペア:

[(1, 68985915), (3, 22995305), (5, 13797183), (15, 4599061), (17, 4057995), (51, 1352665), (85, 811599), (97, 711195), (255, 270533), (291, 237065), (485, 142239), (1455, 47413), (1649, 41835), (2789, 24735), (4947, 13945), (8245, 8367)]