1242764890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4008919}}^1$

素因数の和:4008957

約数の個数: 16

約数和(自身を含む): 2309137920

約数和(自身を除く): 1066373030

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 4008919, 8017838, 20044595, 40089190, 124276489, 248552978, 621382445, 1242764890]

約数ペア:

[(1, 1242764890), (2, 621382445), (5, 248552978), (10, 124276489), (31, 40089190), (62, 20044595), (155, 8017838), (310, 4008919)]