1680459820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6463307}}^1$

素因数の和:6463329

約数の個数: 24

約数和(自身を含む): 3800425104

約数和(自身を除く): 2119965284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6463307, 12926614, 25853228, 32316535, 64633070, 84022991, 129266140, 168045982, 336091964, 420114955, 840229910, 1680459820]

約数ペア:

[(1, 1680459820), (2, 840229910), (4, 420114955), (5, 336091964), (10, 168045982), (13, 129266140), (20, 84022991), (26, 64633070), (52, 32316535), (65, 25853228), (130, 12926614), (260, 6463307)]