7981997140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30699989}}^1$

素因数の和:30700011

約数の個数: 24

約数和(自身を含む): 18051594120

約数和(自身を除く): 10069596980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 30699989, 61399978, 122799956, 153499945, 306999890, 399099857, 613999780, 798199714, 1596399428, 1995499285, 3990998570, 7981997140]

約数ペア:

[(1, 7981997140), (2, 3990998570), (4, 1995499285), (5, 1596399428), (10, 798199714), (13, 613999780), (20, 399099857), (26, 306999890), (52, 153499945), (65, 122799956), (130, 61399978), (260, 30699989)]