28408016

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:316

約数の個数: 80

約数和(自身を含む): 68745600

約数和(自身を除く): 40337584

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 109, 112, 179, 182, 208, 218, 358, 364, 436, 716, 728, 763, 872, 1253, 1417, 1432, 1456, 1526, 1744, 2327, 2506, 2834, 2864, 3052, 4654, 5012, 5668, 6104, 9308, 9919, 10024, 11336, 12208, 16289, 18616, 19511, 19838, 20048, 22672, 32578, 37232, 39022, 39676, 65156, 78044, 79352, 130312, 136577, 156088, 158704, 253643, 260624, 273154, 312176, 507286, 546308, 1014572, 1092616, 1775501, 2029144, 2185232, 3551002, 4058288, 7102004, 14204008, 28408016]

約数ペア:

[(1, 28408016), (2, 14204008), (4, 7102004), (7, 4058288), (8, 3551002), (13, 2185232), (14, 2029144), (16, 1775501), (26, 1092616), (28, 1014572), (52, 546308), (56, 507286), (91, 312176), (104, 273154), (109, 260624), (112, 253643), (179, 158704), (182, 156088), (208, 136577), (218, 130312), (358, 79352), (364, 78044), (436, 65156), (716, 39676), (728, 39022), (763, 37232), (872, 32578), (1253, 22672), (1417, 20048), (1432, 19838), (1456, 19511), (1526, 18616), (1744, 16289), (2327, 12208), (2506, 11336), (2834, 10024), (2864, 9919), (3052, 9308), (4654, 6104), (5012, 5668)]