81289850

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{16097}}^1$

素因数の和:16210

約数の個数: 24

約数和(自身を含む): 152705628

約数和(自身を除く): 71415778

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 5050, 16097, 32194, 80485, 160970, 402425, 804850, 1625797, 3251594, 8128985, 16257970, 40644925, 81289850]

約数ペア:

[(1, 81289850), (2, 40644925), (5, 16257970), (10, 8128985), (25, 3251594), (50, 1625797), (101, 804850), (202, 402425), (505, 160970), (1010, 80485), (2525, 32194), (5050, 16097)]