261625560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1063}}^1$

素因数の和:1377

約数の個数: 128

約数和(自身を含む): 900910080

約数和(自身を除く): 639284520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 293, 420, 586, 840, 879, 1063, 1172, 1465, 1758, 2051, 2126, 2344, 2930, 3189, 3516, 4102, 4252, 4395, 5315, 5860, 6153, 6378, 7032, 7441, 8204, 8504, 8790, 10255, 10630, 11720, 12306, 12756, 14882, 15945, 16408, 17580, 20510, 21260, 22323, 24612, 25512, 29764, 30765, 31890, 35160, 37205, 41020, 42520, 44646, 49224, 59528, 61530, 63780, 74410, 82040, 89292, 111615, 123060, 127560, 148820, 178584, 223230, 246120, 297640, 311459, 446460, 622918, 892920, 934377, 1245836, 1557295, 1868754, 2180213, 2491672, 3114590, 3737508, 4360426, 4671885, 6229180, 6540639, 7475016, 8720852, 9343770, 10901065, 12458360, 13081278, 17441704, 18687540, 21802130, 26162556, 32703195, 37375080, 43604260, 52325112, 65406390, 87208520, 130812780, 261625560]

約数ペア:

[(1, 261625560), (2, 130812780), (3, 87208520), (4, 65406390), (5, 52325112), (6, 43604260), (7, 37375080), (8, 32703195), (10, 26162556), (12, 21802130), (14, 18687540), (15, 17441704), (20, 13081278), (21, 12458360), (24, 10901065), (28, 9343770), (30, 8720852), (35, 7475016), (40, 6540639), (42, 6229180), (56, 4671885), (60, 4360426), (70, 3737508), (84, 3114590), (105, 2491672), (120, 2180213), (140, 1868754), (168, 1557295), (210, 1245836), (280, 934377), (293, 892920), (420, 622918), (586, 446460), (840, 311459), (879, 297640), (1063, 246120), (1172, 223230), (1465, 178584), (1758, 148820), (2051, 127560), (2126, 123060), (2344, 111615), (2930, 89292), (3189, 82040), (3516, 74410), (4102, 63780), (4252, 61530), (4395, 59528), (5315, 49224), (5860, 44646), (6153, 42520), (6378, 41020), (7032, 37205), (7441, 35160), (8204, 31890), (8504, 30765), (8790, 29764), (10255, 25512), (10630, 24612), (11720, 22323), (12306, 21260), (12756, 20510), (14882, 17580), (15945, 16408)]