138291640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{787}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 326799360

約数和(自身を除く): 188507720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 191, 230, 382, 460, 764, 787, 920, 955, 1528, 1574, 1910, 3148, 3820, 3935, 4393, 6296, 7640, 7870, 8786, 15740, 17572, 18101, 21965, 31480, 35144, 36202, 43930, 72404, 87860, 90505, 144808, 150317, 175720, 181010, 300634, 362020, 601268, 724040, 751585, 1202536, 1503170, 3006340, 3457291, 6012680, 6914582, 13829164, 17286455, 27658328, 34572910, 69145820, 138291640]

約数ペア:

[(1, 138291640), (2, 69145820), (4, 34572910), (5, 27658328), (8, 17286455), (10, 13829164), (20, 6914582), (23, 6012680), (40, 3457291), (46, 3006340), (92, 1503170), (115, 1202536), (184, 751585), (191, 724040), (230, 601268), (382, 362020), (460, 300634), (764, 181010), (787, 175720), (920, 150317), (955, 144808), (1528, 90505), (1574, 87860), (1910, 72404), (3148, 43930), (3820, 36202), (3935, 35144), (4393, 31480), (6296, 21965), (7640, 18101), (7870, 17572), (8786, 15740)]