71481880

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{5821}}^1$

素因数の和:6139

約数の個数: 32

約数和(自身を含む): 161385840

約数和(自身を除く): 89903960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 5821, 6140, 11642, 12280, 23284, 29105, 46568, 58210, 116420, 232840, 1787047, 3574094, 7148188, 8935235, 14296376, 17870470, 35740940, 71481880]

約数ペア:

[(1, 71481880), (2, 35740940), (4, 17870470), (5, 14296376), (8, 8935235), (10, 7148188), (20, 3574094), (40, 1787047), (307, 232840), (614, 116420), (1228, 58210), (1535, 46568), (2456, 29105), (3070, 23284), (5821, 12280), (6140, 11642)]