127981360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123059}}^1$

素因数の和:123085

約数の個数: 40

約数和(自身を含む): 320448240

約数和(自身を除く): 192466880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 123059, 246118, 492236, 615295, 984472, 1230590, 1599767, 1968944, 2461180, 3199534, 4922360, 6399068, 7998835, 9844720, 12798136, 15997670, 25596272, 31995340, 63990680, 127981360]

約数ペア:

[(1, 127981360), (2, 63990680), (4, 31995340), (5, 25596272), (8, 15997670), (10, 12798136), (13, 9844720), (16, 7998835), (20, 6399068), (26, 4922360), (40, 3199534), (52, 2461180), (65, 1968944), (80, 1599767), (104, 1230590), (130, 984472), (208, 615295), (260, 492236), (520, 246118), (1040, 123059)]