78212820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{719}}^1$

素因数の和:782

約数の個数: 144

約数和(自身を含む): 261999360

約数和(自身を除く): 183786540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 49, 60, 70, 74, 84, 98, 105, 111, 140, 147, 148, 185, 196, 210, 222, 245, 259, 294, 370, 420, 444, 490, 518, 555, 588, 719, 735, 740, 777, 980, 1036, 1110, 1295, 1438, 1470, 1554, 1813, 2157, 2220, 2590, 2876, 2940, 3108, 3595, 3626, 3885, 4314, 5033, 5180, 5439, 7190, 7252, 7770, 8628, 9065, 10066, 10785, 10878, 14380, 15099, 15540, 18130, 20132, 21570, 21756, 25165, 26603, 27195, 30198, 35231, 36260, 43140, 50330, 53206, 54390, 60396, 70462, 75495, 79809, 100660, 105693, 106412, 108780, 133015, 140924, 150990, 159618, 176155, 186221, 211386, 266030, 301980, 319236, 352310, 372442, 399045, 422772, 528465, 532060, 558663, 704620, 744884, 798090, 931105, 1056930, 1117326, 1303547, 1596180, 1862210, 2113860, 2234652, 2607094, 2793315, 3724420, 3910641, 5214188, 5586630, 6517735, 7821282, 11173260, 13035470, 15642564, 19553205, 26070940, 39106410, 78212820]

約数ペア:

[(1, 78212820), (2, 39106410), (3, 26070940), (4, 19553205), (5, 15642564), (6, 13035470), (7, 11173260), (10, 7821282), (12, 6517735), (14, 5586630), (15, 5214188), (20, 3910641), (21, 3724420), (28, 2793315), (30, 2607094), (35, 2234652), (37, 2113860), (42, 1862210), (49, 1596180), (60, 1303547), (70, 1117326), (74, 1056930), (84, 931105), (98, 798090), (105, 744884), (111, 704620), (140, 558663), (147, 532060), (148, 528465), (185, 422772), (196, 399045), (210, 372442), (222, 352310), (245, 319236), (259, 301980), (294, 266030), (370, 211386), (420, 186221), (444, 176155), (490, 159618), (518, 150990), (555, 140924), (588, 133015), (719, 108780), (735, 106412), (740, 105693), (777, 100660), (980, 79809), (1036, 75495), (1110, 70462), (1295, 60396), (1438, 54390), (1470, 53206), (1554, 50330), (1813, 43140), (2157, 36260), (2220, 35231), (2590, 30198), (2876, 27195), (2940, 26603), (3108, 25165), (3595, 21756), (3626, 21570), (3885, 20132), (4314, 18130), (5033, 15540), (5180, 15099), (5439, 14380), (7190, 10878), (7252, 10785), (7770, 10066), (8628, 9065)]