31172680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:407

約数の個数: 128

約数和(自身を含む): 90720000

約数和(自身を除く): 59547320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 29, 35, 40, 44, 55, 56, 58, 70, 77, 88, 110, 116, 140, 145, 154, 203, 220, 232, 280, 290, 308, 319, 349, 385, 406, 440, 580, 616, 638, 698, 770, 812, 1015, 1160, 1276, 1396, 1540, 1595, 1624, 1745, 2030, 2233, 2443, 2552, 2792, 3080, 3190, 3490, 3839, 4060, 4466, 4886, 6380, 6980, 7678, 8120, 8932, 9772, 10121, 11165, 12215, 12760, 13960, 15356, 17864, 19195, 19544, 20242, 22330, 24430, 26873, 30712, 38390, 40484, 44660, 48860, 50605, 53746, 70847, 76780, 80968, 89320, 97720, 101210, 107492, 111331, 134365, 141694, 153560, 202420, 214984, 222662, 268730, 283388, 354235, 404840, 445324, 537460, 556655, 566776, 708470, 779317, 890648, 1074920, 1113310, 1416940, 1558634, 2226620, 2833880, 3117268, 3896585, 4453240, 6234536, 7793170, 15586340, 31172680]

約数ペア:

[(1, 31172680), (2, 15586340), (4, 7793170), (5, 6234536), (7, 4453240), (8, 3896585), (10, 3117268), (11, 2833880), (14, 2226620), (20, 1558634), (22, 1416940), (28, 1113310), (29, 1074920), (35, 890648), (40, 779317), (44, 708470), (55, 566776), (56, 556655), (58, 537460), (70, 445324), (77, 404840), (88, 354235), (110, 283388), (116, 268730), (140, 222662), (145, 214984), (154, 202420), (203, 153560), (220, 141694), (232, 134365), (280, 111331), (290, 107492), (308, 101210), (319, 97720), (349, 89320), (385, 80968), (406, 76780), (440, 70847), (580, 53746), (616, 50605), (638, 48860), (698, 44660), (770, 40484), (812, 38390), (1015, 30712), (1160, 26873), (1276, 24430), (1396, 22330), (1540, 20242), (1595, 19544), (1624, 19195), (1745, 17864), (2030, 15356), (2233, 13960), (2443, 12760), (2552, 12215), (2792, 11165), (3080, 10121), (3190, 9772), (3490, 8932), (3839, 8120), (4060, 7678), (4466, 6980), (4886, 6380)]