304420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 661248

約数和(自身を除く): 356828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 491, 620, 982, 1964, 2455, 4910, 9820, 15221, 30442, 60884, 76105, 152210, 304420]

約数ペア:

[(1, 304420), (2, 152210), (4, 76105), (5, 60884), (10, 30442), (20, 15221), (31, 9820), (62, 4910), (124, 2455), (155, 1964), (310, 982), (491, 620)]