247614980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{399379}}^1$

素因数の和:399419

約数の個数: 24

約数和(自身を含む): 536766720

約数和(自身を除く): 289151740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 399379, 798758, 1597516, 1996895, 3993790, 7987580, 12380749, 24761498, 49522996, 61903745, 123807490, 247614980]

約数ペア:

[(1, 247614980), (2, 123807490), (4, 61903745), (5, 49522996), (10, 24761498), (20, 12380749), (31, 7987580), (62, 3993790), (124, 1996895), (155, 1597516), (310, 798758), (620, 399379)]