12392840

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{631}}^1$

素因数の和:1133

約数の個数: 32

約数和(自身を含む): 27984960

約数和(自身を除く): 15592120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 631, 982, 1262, 1964, 2455, 2524, 3155, 3928, 4910, 5048, 6310, 9820, 12620, 19640, 25240, 309821, 619642, 1239284, 1549105, 2478568, 3098210, 6196420, 12392840]

約数ペア:

[(1, 12392840), (2, 6196420), (4, 3098210), (5, 2478568), (8, 1549105), (10, 1239284), (20, 619642), (40, 309821), (491, 25240), (631, 19640), (982, 12620), (1262, 9820), (1964, 6310), (2455, 5048), (2524, 4910), (3155, 3928)]