397339990

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{349}}^1\times {\mathrm{443}}^1$

素因数の和:1056

約数の個数: 32

約数和(自身を含む): 721677600

約数和(自身を除く): 324337610

約数列:

[1, 2, 5, 10, 257, 349, 443, 514, 698, 886, 1285, 1745, 2215, 2570, 3490, 4430, 89693, 113851, 154607, 179386, 227702, 309214, 448465, 569255, 773035, 896930, 1138510, 1546070, 39733999, 79467998, 198669995, 397339990]

約数ペア:

[(1, 397339990), (2, 198669995), (5, 79467998), (10, 39733999), (257, 1546070), (349, 1138510), (443, 896930), (514, 773035), (698, 569255), (886, 448465), (1285, 309214), (1745, 227702), (2215, 179386), (2570, 154607), (3490, 113851), (4430, 89693)]