278657360

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{2003}}^1$

素因数の和:2100

約数の個数: 80

約数和(自身を含む): 679885056

約数和(自身を除く): 401227696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 47, 74, 80, 94, 148, 185, 188, 235, 296, 370, 376, 470, 592, 740, 752, 940, 1480, 1739, 1880, 2003, 2960, 3478, 3760, 4006, 6956, 8012, 8695, 10015, 13912, 16024, 17390, 20030, 27824, 32048, 34780, 40060, 69560, 74111, 80120, 94141, 139120, 148222, 160240, 188282, 296444, 370555, 376564, 470705, 592888, 741110, 753128, 941410, 1185776, 1482220, 1506256, 1882820, 2964440, 3483217, 3765640, 5928880, 6966434, 7531280, 13932868, 17416085, 27865736, 34832170, 55731472, 69664340, 139328680, 278657360]

約数ペア:

[(1, 278657360), (2, 139328680), (4, 69664340), (5, 55731472), (8, 34832170), (10, 27865736), (16, 17416085), (20, 13932868), (37, 7531280), (40, 6966434), (47, 5928880), (74, 3765640), (80, 3483217), (94, 2964440), (148, 1882820), (185, 1506256), (188, 1482220), (235, 1185776), (296, 941410), (370, 753128), (376, 741110), (470, 592888), (592, 470705), (740, 376564), (752, 370555), (940, 296444), (1480, 188282), (1739, 160240), (1880, 148222), (2003, 139120), (2960, 94141), (3478, 80120), (3760, 74111), (4006, 69560), (6956, 40060), (8012, 34780), (8695, 32048), (10015, 27824), (13912, 20030), (16024, 17390)]