81217700

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{5843}}^1$

素因数の和:5996

約数の個数: 36

約数和(自身を含む): 177540720

約数和(自身を除く): 96323020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2780, 3475, 5843, 6950, 11686, 13900, 23372, 29215, 58430, 116860, 146075, 292150, 584300, 812177, 1624354, 3248708, 4060885, 8121770, 16243540, 20304425, 40608850, 81217700]

約数ペア:

[(1, 81217700), (2, 40608850), (4, 20304425), (5, 16243540), (10, 8121770), (20, 4060885), (25, 3248708), (50, 1624354), (100, 812177), (139, 584300), (278, 292150), (556, 146075), (695, 116860), (1390, 58430), (2780, 29215), (3475, 23372), (5843, 13900), (6950, 11686)]