28720140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:827

約数の個数: 96

約数和(自身を含む): 87562944

約数和(自身を除く): 58842804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 37, 51, 60, 68, 74, 85, 102, 111, 148, 170, 185, 204, 222, 255, 340, 370, 444, 510, 555, 629, 740, 761, 1020, 1110, 1258, 1522, 1887, 2220, 2283, 2516, 3044, 3145, 3774, 3805, 4566, 6290, 7548, 7610, 9132, 9435, 11415, 12580, 12937, 15220, 18870, 22830, 25874, 28157, 37740, 38811, 45660, 51748, 56314, 64685, 77622, 84471, 112628, 129370, 140785, 155244, 168942, 194055, 258740, 281570, 337884, 388110, 422355, 478669, 563140, 776220, 844710, 957338, 1436007, 1689420, 1914676, 2393345, 2872014, 4786690, 5744028, 7180035, 9573380, 14360070, 28720140]

約数ペア:

[(1, 28720140), (2, 14360070), (3, 9573380), (4, 7180035), (5, 5744028), (6, 4786690), (10, 2872014), (12, 2393345), (15, 1914676), (17, 1689420), (20, 1436007), (30, 957338), (34, 844710), (37, 776220), (51, 563140), (60, 478669), (68, 422355), (74, 388110), (85, 337884), (102, 281570), (111, 258740), (148, 194055), (170, 168942), (185, 155244), (204, 140785), (222, 129370), (255, 112628), (340, 84471), (370, 77622), (444, 64685), (510, 56314), (555, 51748), (629, 45660), (740, 38811), (761, 37740), (1020, 28157), (1110, 25874), (1258, 22830), (1522, 18870), (1887, 15220), (2220, 12937), (2283, 12580), (2516, 11415), (3044, 9435), (3145, 9132), (3774, 7610), (3805, 7548), (4566, 6290)]