149619640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{120661}}^1$

素因数の和:120703

約数の個数: 32

約数和(自身を含む): 347506560

約数和(自身を除く): 197886920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 120661, 241322, 482644, 603305, 965288, 1206610, 2413220, 3740491, 4826440, 7480982, 14961964, 18702455, 29923928, 37404910, 74809820, 149619640]

約数ペア:

[(1, 149619640), (2, 74809820), (4, 37404910), (5, 29923928), (8, 18702455), (10, 14961964), (20, 7480982), (31, 4826440), (40, 3740491), (62, 2413220), (124, 1206610), (155, 965288), (248, 603305), (310, 482644), (620, 241322), (1240, 120661)]