639346575

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 1251475456

約数和(自身を除く): 612128881

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 75, 105, 127, 129, 175, 215, 223, 301, 381, 525, 635, 645, 669, 889, 903, 1075, 1115, 1505, 1561, 1905, 2667, 3175, 3225, 3345, 4445, 4515, 4683, 5461, 5575, 7525, 7805, 9525, 9589, 13335, 16383, 16725, 22225, 22575, 23415, 27305, 28321, 28767, 38227, 39025, 47945, 66675, 67123, 81915, 84963, 114681, 117075, 136525, 141605, 143835, 191135, 198247, 201369, 239725, 335615, 409575, 424815, 573405, 594741, 708025, 719175, 955675, 991235, 1006845, 1217803, 1678075, 2124075, 2867025, 2973705, 3653409, 4956175, 5034225, 6089015, 8524621, 14868525, 18267045, 25573863, 30445075, 42623105, 91335225, 127869315, 213115525, 639346575]

約数ペア:

[(1, 639346575), (3, 213115525), (5, 127869315), (7, 91335225), (15, 42623105), (21, 30445075), (25, 25573863), (35, 18267045), (43, 14868525), (75, 8524621), (105, 6089015), (127, 5034225), (129, 4956175), (175, 3653409), (215, 2973705), (223, 2867025), (301, 2124075), (381, 1678075), (525, 1217803), (635, 1006845), (645, 991235), (669, 955675), (889, 719175), (903, 708025), (1075, 594741), (1115, 573405), (1505, 424815), (1561, 409575), (1905, 335615), (2667, 239725), (3175, 201369), (3225, 198247), (3345, 191135), (4445, 143835), (4515, 141605), (4683, 136525), (5461, 117075), (5575, 114681), (7525, 84963), (7805, 81915), (9525, 67123), (9589, 66675), (13335, 47945), (16383, 39025), (16725, 38227), (22225, 28767), (22575, 28321), (23415, 27305)]