71431120

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2131}}^1$

素因数の和:2563

約数の個数: 40

約数和(自身を含む): 166551840

約数和(自身を除く): 95120720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 838, 1676, 2095, 2131, 3352, 4190, 4262, 6704, 8380, 8524, 10655, 16760, 17048, 21310, 33520, 34096, 42620, 85240, 170480, 892889, 1785778, 3571556, 4464445, 7143112, 8928890, 14286224, 17857780, 35715560, 71431120]

約数ペア:

[(1, 71431120), (2, 35715560), (4, 17857780), (5, 14286224), (8, 8928890), (10, 7143112), (16, 4464445), (20, 3571556), (40, 1785778), (80, 892889), (419, 170480), (838, 85240), (1676, 42620), (2095, 34096), (2131, 33520), (3352, 21310), (4190, 17048), (4262, 16760), (6704, 10655), (8380, 8524)]