12868040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 30792960

約数和(自身を除く): 17924920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 197, 230, 284, 355, 394, 460, 568, 710, 788, 920, 985, 1420, 1576, 1633, 1970, 2840, 3266, 3940, 4531, 6532, 7880, 8165, 9062, 13064, 13987, 16330, 18124, 22655, 27974, 32660, 36248, 45310, 55948, 65320, 69935, 90620, 111896, 139870, 181240, 279740, 321701, 559480, 643402, 1286804, 1608505, 2573608, 3217010, 6434020, 12868040]

約数ペア:

[(1, 12868040), (2, 6434020), (4, 3217010), (5, 2573608), (8, 1608505), (10, 1286804), (20, 643402), (23, 559480), (40, 321701), (46, 279740), (71, 181240), (92, 139870), (115, 111896), (142, 90620), (184, 69935), (197, 65320), (230, 55948), (284, 45310), (355, 36248), (394, 32660), (460, 27974), (568, 22655), (710, 18124), (788, 16330), (920, 13987), (985, 13064), (1420, 9062), (1576, 8165), (1633, 7880), (1970, 6532), (2840, 4531), (3266, 3940)]