64137140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 144135936

約数和(自身を除く): 79998796

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 71, 94, 124, 142, 155, 188, 235, 284, 310, 355, 470, 620, 710, 940, 961, 1420, 1457, 1922, 2201, 2914, 3337, 3844, 4402, 4805, 5828, 6674, 7285, 8804, 9610, 11005, 13348, 14570, 16685, 19220, 22010, 29140, 33370, 44020, 45167, 66740, 68231, 90334, 103447, 136462, 180668, 206894, 225835, 272924, 341155, 413788, 451670, 517235, 682310, 903340, 1034470, 1364620, 2068940, 3206857, 6413714, 12827428, 16034285, 32068570, 64137140]

約数ペア:

[(1, 64137140), (2, 32068570), (4, 16034285), (5, 12827428), (10, 6413714), (20, 3206857), (31, 2068940), (47, 1364620), (62, 1034470), (71, 903340), (94, 682310), (124, 517235), (142, 451670), (155, 413788), (188, 341155), (235, 272924), (284, 225835), (310, 206894), (355, 180668), (470, 136462), (620, 103447), (710, 90334), (940, 68231), (961, 66740), (1420, 45167), (1457, 44020), (1922, 33370), (2201, 29140), (2914, 22010), (3337, 19220), (3844, 16685), (4402, 14570), (4805, 13348), (5828, 11005), (6674, 9610), (7285, 8804)]