280974420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{691}}^1$

素因数の和:963

約数の個数: 120

約数和(自身を含む): 886219488

約数和(自身を除く): 605245068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 251, 270, 324, 405, 502, 540, 691, 753, 810, 1004, 1255, 1382, 1506, 1620, 2073, 2259, 2510, 2764, 3012, 3455, 3765, 4146, 4518, 5020, 6219, 6777, 6910, 7530, 8292, 9036, 10365, 11295, 12438, 13554, 13820, 15060, 18657, 20331, 20730, 22590, 24876, 27108, 31095, 33885, 37314, 40662, 41460, 45180, 55971, 62190, 67770, 74628, 81324, 93285, 101655, 111942, 124380, 135540, 173441, 186570, 203310, 223884, 279855, 346882, 373140, 406620, 520323, 559710, 693764, 867205, 1040646, 1119420, 1560969, 1734410, 2081292, 2601615, 3121938, 3468820, 4682907, 5203230, 6243876, 7804845, 9365814, 10406460, 14048721, 15609690, 18731628, 23414535, 28097442, 31219380, 46829070, 56194884, 70243605, 93658140, 140487210, 280974420]

約数ペア:

[(1, 280974420), (2, 140487210), (3, 93658140), (4, 70243605), (5, 56194884), (6, 46829070), (9, 31219380), (10, 28097442), (12, 23414535), (15, 18731628), (18, 15609690), (20, 14048721), (27, 10406460), (30, 9365814), (36, 7804845), (45, 6243876), (54, 5203230), (60, 4682907), (81, 3468820), (90, 3121938), (108, 2601615), (135, 2081292), (162, 1734410), (180, 1560969), (251, 1119420), (270, 1040646), (324, 867205), (405, 693764), (502, 559710), (540, 520323), (691, 406620), (753, 373140), (810, 346882), (1004, 279855), (1255, 223884), (1382, 203310), (1506, 186570), (1620, 173441), (2073, 135540), (2259, 124380), (2510, 111942), (2764, 101655), (3012, 93285), (3455, 81324), (3765, 74628), (4146, 67770), (4518, 62190), (5020, 55971), (6219, 45180), (6777, 41460), (6910, 40662), (7530, 37314), (8292, 33885), (9036, 31095), (10365, 27108), (11295, 24876), (12438, 22590), (13554, 20730), (13820, 20331), (15060, 18657)]