68017520

素因数分解:

$2^4\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1489}}^1$

素因数の和:2073

約数の個数: 40

約数和(自身を含む): 158524080

約数和(自身を除く): 90506560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 571, 1142, 1489, 2284, 2855, 2978, 4568, 5710, 5956, 7445, 9136, 11420, 11912, 14890, 22840, 23824, 29780, 45680, 59560, 119120, 850219, 1700438, 3400876, 4251095, 6801752, 8502190, 13603504, 17004380, 34008760, 68017520]

約数ペア:

[(1, 68017520), (2, 34008760), (4, 17004380), (5, 13603504), (8, 8502190), (10, 6801752), (16, 4251095), (20, 3400876), (40, 1700438), (80, 850219), (571, 119120), (1142, 59560), (1489, 45680), (2284, 29780), (2855, 23824), (2978, 22840), (4568, 14890), (5710, 11912), (5956, 11420), (7445, 9136)]