16187890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:778

約数の個数: 32

約数和(自身を含む): 30504960

約数和(自身を除く): 14317070

約数列:

[1, 2, 5, 10, 31, 62, 79, 155, 158, 310, 395, 661, 790, 1322, 2449, 3305, 4898, 6610, 12245, 20491, 24490, 40982, 52219, 102455, 104438, 204910, 261095, 522190, 1618789, 3237578, 8093945, 16187890]

約数ペア:

[(1, 16187890), (2, 8093945), (5, 3237578), (10, 1618789), (31, 522190), (62, 261095), (79, 204910), (155, 104438), (158, 102455), (310, 52219), (395, 40982), (661, 24490), (790, 20491), (1322, 12245), (2449, 6610), (3305, 4898)]