870147640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{2293}}^1$

素因数の和:2536

約数の個数: 64

約数和(自身を含む): 2006791200

約数和(自身を除く): 1136643560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 179, 212, 265, 358, 424, 530, 716, 895, 1060, 1432, 1790, 2120, 2293, 3580, 4586, 7160, 9172, 9487, 11465, 18344, 18974, 22930, 37948, 45860, 47435, 75896, 91720, 94870, 121529, 189740, 243058, 379480, 410447, 486116, 607645, 820894, 972232, 1215290, 1641788, 2052235, 2430580, 3283576, 4104470, 4861160, 8208940, 16417880, 21753691, 43507382, 87014764, 108768455, 174029528, 217536910, 435073820, 870147640]

約数ペア:

[(1, 870147640), (2, 435073820), (4, 217536910), (5, 174029528), (8, 108768455), (10, 87014764), (20, 43507382), (40, 21753691), (53, 16417880), (106, 8208940), (179, 4861160), (212, 4104470), (265, 3283576), (358, 2430580), (424, 2052235), (530, 1641788), (716, 1215290), (895, 972232), (1060, 820894), (1432, 607645), (1790, 486116), (2120, 410447), (2293, 379480), (3580, 243058), (4586, 189740), (7160, 121529), (9172, 94870), (9487, 91720), (11465, 75896), (18344, 47435), (18974, 45860), (22930, 37948)]