280418560

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:280

約数の個数: 144

約数和(自身を含む): 715825152

約数和(自身を除く): 435406592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 148, 155, 160, 185, 191, 248, 256, 296, 310, 320, 370, 382, 496, 592, 620, 640, 740, 764, 955, 992, 1147, 1184, 1240, 1280, 1480, 1528, 1910, 1984, 2294, 2368, 2480, 2960, 3056, 3820, 3968, 4588, 4736, 4960, 5735, 5920, 5921, 6112, 7067, 7640, 7936, 9176, 9472, 9920, 11470, 11840, 11842, 12224, 14134, 15280, 18352, 19840, 22940, 23680, 23684, 24448, 28268, 29605, 30560, 35335, 36704, 39680, 45880, 47360, 47368, 48896, 56536, 59210, 61120, 70670, 73408, 91760, 94736, 113072, 118420, 122240, 141340, 146816, 183520, 189472, 219077, 226144, 236840, 244480, 282680, 293632, 367040, 378944, 438154, 452288, 473680, 565360, 734080, 757888, 876308, 904576, 947360, 1095385, 1130720, 1468160, 1515776, 1752616, 1809152, 1894720, 2190770, 2261440, 3505232, 3789440, 4381540, 4522880, 7010464, 7578880, 8763080, 9045760, 14020928, 17526160, 28041856, 35052320, 56083712, 70104640, 140209280, 280418560]

約数ペア:

[(1, 280418560), (2, 140209280), (4, 70104640), (5, 56083712), (8, 35052320), (10, 28041856), (16, 17526160), (20, 14020928), (31, 9045760), (32, 8763080), (37, 7578880), (40, 7010464), (62, 4522880), (64, 4381540), (74, 3789440), (80, 3505232), (124, 2261440), (128, 2190770), (148, 1894720), (155, 1809152), (160, 1752616), (185, 1515776), (191, 1468160), (248, 1130720), (256, 1095385), (296, 947360), (310, 904576), (320, 876308), (370, 757888), (382, 734080), (496, 565360), (592, 473680), (620, 452288), (640, 438154), (740, 378944), (764, 367040), (955, 293632), (992, 282680), (1147, 244480), (1184, 236840), (1240, 226144), (1280, 219077), (1480, 189472), (1528, 183520), (1910, 146816), (1984, 141340), (2294, 122240), (2368, 118420), (2480, 113072), (2960, 94736), (3056, 91760), (3820, 73408), (3968, 70670), (4588, 61120), (4736, 59210), (4960, 56536), (5735, 48896), (5920, 47368), (5921, 47360), (6112, 45880), (7067, 39680), (7640, 36704), (7936, 35335), (9176, 30560), (9472, 29605), (9920, 28268), (11470, 24448), (11840, 23684), (11842, 23680), (12224, 22940), (14134, 19840), (15280, 18352)]