67604156920

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{991}}^1\times {\mathrm{4253}}^1$

素因数の和:5656

約数の個数: 64

約数和(自身を含む): 152678442240

約数和(自身を除く): 85074285320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 991, 1604, 1982, 2005, 3208, 3964, 4010, 4253, 4955, 7928, 8020, 8506, 9910, 16040, 17012, 19820, 21265, 34024, 39640, 42530, 85060, 170120, 397391, 794782, 1589564, 1705453, 1986955, 3179128, 3410906, 3973910, 4214723, 6821812, 7947820, 8429446, 8527265, 13643624, 15895640, 16858892, 17054530, 21073615, 33717784, 34109060, 42147230, 68218120, 84294460, 168588920, 1690103923, 3380207846, 6760415692, 8450519615, 13520831384, 16901039230, 33802078460, 67604156920]

約数ペア:

[(1, 67604156920), (2, 33802078460), (4, 16901039230), (5, 13520831384), (8, 8450519615), (10, 6760415692), (20, 3380207846), (40, 1690103923), (401, 168588920), (802, 84294460), (991, 68218120), (1604, 42147230), (1982, 34109060), (2005, 33717784), (3208, 21073615), (3964, 17054530), (4010, 16858892), (4253, 15895640), (4955, 13643624), (7928, 8527265), (8020, 8429446), (8506, 7947820), (9910, 6821812), (16040, 4214723), (17012, 3973910), (19820, 3410906), (21265, 3179128), (34024, 1986955), (39640, 1705453), (42530, 1589564), (85060, 794782), (170120, 397391)]