18872664

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 49494240

約数和(自身を除く): 30621576

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 53, 74, 106, 111, 148, 159, 212, 222, 296, 318, 401, 424, 444, 636, 802, 888, 1203, 1272, 1604, 1961, 2406, 3208, 3922, 4812, 5883, 7844, 9624, 11766, 14837, 15688, 21253, 23532, 29674, 42506, 44511, 47064, 59348, 63759, 85012, 89022, 118696, 127518, 170024, 178044, 255036, 356088, 510072, 786361, 1572722, 2359083, 3145444, 4718166, 6290888, 9436332, 18872664]

約数ペア:

[(1, 18872664), (2, 9436332), (3, 6290888), (4, 4718166), (6, 3145444), (8, 2359083), (12, 1572722), (24, 786361), (37, 510072), (53, 356088), (74, 255036), (106, 178044), (111, 170024), (148, 127518), (159, 118696), (212, 89022), (222, 85012), (296, 63759), (318, 59348), (401, 47064), (424, 44511), (444, 42506), (636, 29674), (802, 23532), (888, 21253), (1203, 15688), (1272, 14837), (1604, 11766), (1961, 9624), (2406, 7844), (3208, 5883), (3922, 4812)]