28217412

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 75950784

約数和(自身を除く): 47733372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 53, 69, 92, 106, 138, 159, 207, 212, 276, 318, 414, 477, 636, 643, 828, 954, 1219, 1286, 1908, 1929, 2438, 2572, 3657, 3858, 4876, 5787, 7314, 7716, 10971, 11574, 14628, 14789, 21942, 23148, 29578, 34079, 43884, 44367, 59156, 68158, 88734, 102237, 133101, 136316, 177468, 204474, 266202, 306711, 408948, 532404, 613422, 783817, 1226844, 1567634, 2351451, 3135268, 4702902, 7054353, 9405804, 14108706, 28217412]

約数ペア:

[(1, 28217412), (2, 14108706), (3, 9405804), (4, 7054353), (6, 4702902), (9, 3135268), (12, 2351451), (18, 1567634), (23, 1226844), (36, 783817), (46, 613422), (53, 532404), (69, 408948), (92, 306711), (106, 266202), (138, 204474), (159, 177468), (207, 136316), (212, 133101), (276, 102237), (318, 88734), (414, 68158), (477, 59156), (636, 44367), (643, 43884), (828, 34079), (954, 29578), (1219, 23148), (1286, 21942), (1908, 14789), (1929, 14628), (2438, 11574), (2572, 10971), (3657, 7716), (3858, 7314), (4876, 5787)]