71251840

素因数分解:

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

素因数の和:408

約数の個数: 128

約数和(自身を含む): 192780000

約数和(自身を除く): 121528160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 110, 116, 128, 145, 160, 176, 220, 232, 290, 319, 320, 349, 352, 440, 464, 580, 638, 640, 698, 704, 880, 928, 1160, 1276, 1396, 1408, 1595, 1745, 1760, 1856, 2320, 2552, 2792, 3190, 3490, 3520, 3712, 3839, 4640, 5104, 5584, 6380, 6980, 7040, 7678, 9280, 10121, 10208, 11168, 12760, 13960, 15356, 18560, 19195, 20242, 20416, 22336, 25520, 27920, 30712, 38390, 40484, 40832, 44672, 50605, 51040, 55840, 61424, 76780, 80968, 101210, 102080, 111331, 111680, 122848, 153560, 161936, 202420, 204160, 222662, 223360, 245696, 307120, 323872, 404840, 445324, 491392, 556655, 614240, 647744, 809680, 890648, 1113310, 1228480, 1295488, 1619360, 1781296, 2226620, 2456960, 3238720, 3562592, 4453240, 6477440, 7125184, 8906480, 14250368, 17812960, 35625920, 71251840]

約数ペア:

[(1, 71251840), (2, 35625920), (4, 17812960), (5, 14250368), (8, 8906480), (10, 7125184), (11, 6477440), (16, 4453240), (20, 3562592), (22, 3238720), (29, 2456960), (32, 2226620), (40, 1781296), (44, 1619360), (55, 1295488), (58, 1228480), (64, 1113310), (80, 890648), (88, 809680), (110, 647744), (116, 614240), (128, 556655), (145, 491392), (160, 445324), (176, 404840), (220, 323872), (232, 307120), (290, 245696), (319, 223360), (320, 222662), (349, 204160), (352, 202420), (440, 161936), (464, 153560), (580, 122848), (638, 111680), (640, 111331), (698, 102080), (704, 101210), (880, 80968), (928, 76780), (1160, 61424), (1276, 55840), (1396, 51040), (1408, 50605), (1595, 44672), (1745, 40832), (1760, 40484), (1856, 38390), (2320, 30712), (2552, 27920), (2792, 25520), (3190, 22336), (3490, 20416), (3520, 20242), (3712, 19195), (3839, 18560), (4640, 15356), (5104, 13960), (5584, 12760), (6380, 11168), (6980, 10208), (7040, 10121), (7678, 9280)]