129613340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{941}}^1$

素因数の和:1118

約数の個数: 48

約数和(自身を含む): 279163584

約数和(自身を除く): 149550244

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 142, 194, 284, 355, 388, 485, 710, 941, 970, 1420, 1882, 1940, 3764, 4705, 6887, 9410, 13774, 18820, 27548, 34435, 66811, 68870, 91277, 133622, 137740, 182554, 267244, 334055, 365108, 456385, 668110, 912770, 1336220, 1825540, 6480667, 12961334, 25922668, 32403335, 64806670, 129613340]

約数ペア:

[(1, 129613340), (2, 64806670), (4, 32403335), (5, 25922668), (10, 12961334), (20, 6480667), (71, 1825540), (97, 1336220), (142, 912770), (194, 668110), (284, 456385), (355, 365108), (388, 334055), (485, 267244), (710, 182554), (941, 137740), (970, 133622), (1420, 91277), (1882, 68870), (1940, 66811), (3764, 34435), (4705, 27548), (6887, 18820), (9410, 13774)]