71405840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1531}}^1$

素因数の和:1608

約数の個数: 80

約数和(自身を含む): 184648896

約数和(自身を除く): 113243056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 80, 88, 106, 110, 176, 212, 220, 265, 424, 440, 530, 583, 848, 880, 1060, 1166, 1531, 2120, 2332, 2915, 3062, 4240, 4664, 5830, 6124, 7655, 9328, 11660, 12248, 15310, 16841, 23320, 24496, 30620, 33682, 46640, 61240, 67364, 81143, 84205, 122480, 134728, 162286, 168410, 269456, 324572, 336820, 405715, 649144, 673640, 811430, 892573, 1298288, 1347280, 1622860, 1785146, 3245720, 3570292, 4462865, 6491440, 7140584, 8925730, 14281168, 17851460, 35702920, 71405840]

約数ペア:

[(1, 71405840), (2, 35702920), (4, 17851460), (5, 14281168), (8, 8925730), (10, 7140584), (11, 6491440), (16, 4462865), (20, 3570292), (22, 3245720), (40, 1785146), (44, 1622860), (53, 1347280), (55, 1298288), (80, 892573), (88, 811430), (106, 673640), (110, 649144), (176, 405715), (212, 336820), (220, 324572), (265, 269456), (424, 168410), (440, 162286), (530, 134728), (583, 122480), (848, 84205), (880, 81143), (1060, 67364), (1166, 61240), (1531, 46640), (2120, 33682), (2332, 30620), (2915, 24496), (3062, 23320), (4240, 16841), (4664, 15310), (5830, 12248), (6124, 11660), (7655, 9328)]