82720280

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{39019}}^1$

素因数の和:39083

約数の個数: 32

約数和(自身を含む): 189637200

約数和(自身を除く): 106916920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 39019, 78038, 156076, 195095, 312152, 390190, 780380, 1560760, 2068007, 4136014, 8272028, 10340035, 16544056, 20680070, 41360140, 82720280]

約数ペア:

[(1, 82720280), (2, 41360140), (4, 20680070), (5, 16544056), (8, 10340035), (10, 8272028), (20, 4136014), (40, 2068007), (53, 1560760), (106, 780380), (212, 390190), (265, 312152), (424, 195095), (530, 156076), (1060, 78038), (2120, 39019)]