407350420

素因数分解:

$2^2\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{12899}}^1$

素因数の和:14487

約数の個数: 24

約数和(自身を含む): 856044000

約数和(自身を除く): 448693580

約数列:

[1, 2, 4, 5, 10, 20, 1579, 3158, 6316, 7895, 12899, 15790, 25798, 31580, 51596, 64495, 128990, 257980, 20367521, 40735042, 81470084, 101837605, 203675210, 407350420]

約数ペア:

[(1, 407350420), (2, 203675210), (4, 101837605), (5, 81470084), (10, 40735042), (20, 20367521), (1579, 257980), (3158, 128990), (6316, 64495), (7895, 51596), (12899, 31580), (15790, 25798)]