28291716

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 74850048

約数和(自身を除く): 46558332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 101, 124, 186, 202, 251, 279, 303, 372, 404, 502, 558, 606, 753, 909, 1004, 1116, 1212, 1506, 1818, 2259, 3012, 3131, 3636, 4518, 6262, 7781, 9036, 9393, 12524, 15562, 18786, 23343, 25351, 28179, 31124, 37572, 46686, 50702, 56358, 70029, 76053, 93372, 101404, 112716, 140058, 152106, 228159, 280116, 304212, 456318, 785881, 912636, 1571762, 2357643, 3143524, 4715286, 7072929, 9430572, 14145858, 28291716]

約数ペア:

[(1, 28291716), (2, 14145858), (3, 9430572), (4, 7072929), (6, 4715286), (9, 3143524), (12, 2357643), (18, 1571762), (31, 912636), (36, 785881), (62, 456318), (93, 304212), (101, 280116), (124, 228159), (186, 152106), (202, 140058), (251, 112716), (279, 101404), (303, 93372), (372, 76053), (404, 70029), (502, 56358), (558, 50702), (606, 46686), (753, 37572), (909, 31124), (1004, 28179), (1116, 25351), (1212, 23343), (1506, 18786), (1818, 15562), (2259, 12524), (3012, 9393), (3131, 9036), (3636, 7781), (4518, 6262)]