128159332

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 279928320

約数和(自身を除く): 151768988

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 76, 124, 133, 217, 266, 361, 409, 434, 532, 589, 722, 818, 868, 1178, 1444, 1636, 2356, 2527, 2863, 4123, 5054, 5726, 7771, 8246, 10108, 11191, 11452, 12679, 15542, 16492, 22382, 25358, 31084, 44764, 50716, 54397, 78337, 88753, 108794, 147649, 156674, 177506, 217588, 240901, 295298, 313348, 355012, 481802, 590596, 963604, 1033543, 1686307, 2067086, 3372614, 4134172, 4577119, 6745228, 9154238, 18308476, 32039833, 64079666, 128159332]

約数ペア:

[(1, 128159332), (2, 64079666), (4, 32039833), (7, 18308476), (14, 9154238), (19, 6745228), (28, 4577119), (31, 4134172), (38, 3372614), (62, 2067086), (76, 1686307), (124, 1033543), (133, 963604), (217, 590596), (266, 481802), (361, 355012), (409, 313348), (434, 295298), (532, 240901), (589, 217588), (722, 177506), (818, 156674), (868, 147649), (1178, 108794), (1444, 88753), (1636, 78337), (2356, 54397), (2527, 50716), (2863, 44764), (4123, 31084), (5054, 25358), (5726, 22382), (7771, 16492), (8246, 15542), (10108, 12679), (11191, 11452)]