12805280

素因数分解:

$2^5\times 5^1\times {\mathrm{163}}^1\times {\mathrm{491}}^1$

素因数の和:669

約数の個数: 48

約数和(自身を含む): 30500064

約数和(自身を除く): 17694784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 163, 326, 491, 652, 815, 982, 1304, 1630, 1964, 2455, 2608, 3260, 3928, 4910, 5216, 6520, 7856, 9820, 13040, 15712, 19640, 26080, 39280, 78560, 80033, 160066, 320132, 400165, 640264, 800330, 1280528, 1600660, 2561056, 3201320, 6402640, 12805280]

約数ペア:

[(1, 12805280), (2, 6402640), (4, 3201320), (5, 2561056), (8, 1600660), (10, 1280528), (16, 800330), (20, 640264), (32, 400165), (40, 320132), (80, 160066), (160, 80033), (163, 78560), (326, 39280), (491, 26080), (652, 19640), (815, 15712), (982, 13040), (1304, 9820), (1630, 7856), (1964, 6520), (2455, 5216), (2608, 4910), (3260, 3928)]