231405188

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2707}}^1$

素因数の和:2832

約数の個数: 48

約数和(自身を含む): 480420864

約数和(自身を除く): 249015676

約数列:

[1, 2, 4, 7, 14, 28, 43, 71, 86, 142, 172, 284, 301, 497, 602, 994, 1204, 1988, 2707, 3053, 5414, 6106, 10828, 12212, 18949, 21371, 37898, 42742, 75796, 85484, 116401, 192197, 232802, 384394, 465604, 768788, 814807, 1345379, 1629614, 2690758, 3259228, 5381516, 8264471, 16528942, 33057884, 57851297, 115702594, 231405188]

約数ペア:

[(1, 231405188), (2, 115702594), (4, 57851297), (7, 33057884), (14, 16528942), (28, 8264471), (43, 5381516), (71, 3259228), (86, 2690758), (142, 1629614), (172, 1345379), (284, 814807), (301, 768788), (497, 465604), (602, 384394), (994, 232802), (1204, 192197), (1988, 116401), (2707, 85484), (3053, 75796), (5414, 42742), (6106, 37898), (10828, 21371), (12212, 18949)]