614420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1031

約数の個数: 24

約数和(自身を含む): 1333248

約数和(自身を除く): 718828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 991, 1982, 3964, 4955, 9910, 19820, 30721, 61442, 122884, 153605, 307210, 614420]

約数ペア:

[(1, 614420), (2, 307210), (4, 153605), (5, 122884), (10, 61442), (20, 30721), (31, 19820), (62, 9910), (124, 4955), (155, 3964), (310, 1982), (620, 991)]