78964720

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6287}}^1$

素因数の和:6457

約数の個数: 40

約数和(自身を含む): 184791744

約数和(自身を除く): 105827024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 6287, 12560, 12574, 25148, 31435, 50296, 62870, 100592, 125740, 251480, 502960, 987059, 1974118, 3948236, 4935295, 7896472, 9870590, 15792944, 19741180, 39482360, 78964720]

約数ペア:

[(1, 78964720), (2, 39482360), (4, 19741180), (5, 15792944), (8, 9870590), (10, 7896472), (16, 4935295), (20, 3948236), (40, 1974118), (80, 987059), (157, 502960), (314, 251480), (628, 125740), (785, 100592), (1256, 62870), (1570, 50296), (2512, 31435), (3140, 25148), (6280, 12574), (6287, 12560)]