279797840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:685

約数の個数: 120

約数和(自身を含む): 763725672

約数和(自身を除く): 483927832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 137, 140, 196, 245, 274, 280, 392, 490, 521, 548, 560, 685, 784, 959, 980, 1042, 1096, 1370, 1918, 1960, 2084, 2192, 2605, 2740, 3647, 3836, 3920, 4168, 4795, 5210, 5480, 6713, 7294, 7672, 8336, 9590, 10420, 10960, 13426, 14588, 15344, 18235, 19180, 20840, 25529, 26852, 29176, 33565, 36470, 38360, 41680, 51058, 53704, 58352, 67130, 71377, 72940, 76720, 102116, 107408, 127645, 134260, 142754, 145880, 204232, 255290, 268520, 285508, 291760, 356885, 408464, 499639, 510580, 537040, 571016, 713770, 999278, 1021160, 1142032, 1427540, 1998556, 2042320, 2498195, 2855080, 3497473, 3997112, 4996390, 5710160, 6994946, 7994224, 9992780, 13989892, 17487365, 19985560, 27979784, 34974730, 39971120, 55959568, 69949460, 139898920, 279797840]

約数ペア:

[(1, 279797840), (2, 139898920), (4, 69949460), (5, 55959568), (7, 39971120), (8, 34974730), (10, 27979784), (14, 19985560), (16, 17487365), (20, 13989892), (28, 9992780), (35, 7994224), (40, 6994946), (49, 5710160), (56, 4996390), (70, 3997112), (80, 3497473), (98, 2855080), (112, 2498195), (137, 2042320), (140, 1998556), (196, 1427540), (245, 1142032), (274, 1021160), (280, 999278), (392, 713770), (490, 571016), (521, 537040), (548, 510580), (560, 499639), (685, 408464), (784, 356885), (959, 291760), (980, 285508), (1042, 268520), (1096, 255290), (1370, 204232), (1918, 145880), (1960, 142754), (2084, 134260), (2192, 127645), (2605, 107408), (2740, 102116), (3647, 76720), (3836, 72940), (3920, 71377), (4168, 67130), (4795, 58352), (5210, 53704), (5480, 51058), (6713, 41680), (7294, 38360), (7672, 36470), (8336, 33565), (9590, 29176), (10420, 26852), (10960, 25529), (13426, 20840), (14588, 19180), (15344, 18235)]