77880140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{299539}}^1$

素因数の和:299561

約数の個数: 24

約数和(自身を含む): 176129520

約数和(自身を除く): 98249380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 299539, 599078, 1198156, 1497695, 2995390, 3894007, 5990780, 7788014, 15576028, 19470035, 38940070, 77880140]

約数ペア:

[(1, 77880140), (2, 38940070), (4, 19470035), (5, 15576028), (10, 7788014), (13, 5990780), (20, 3894007), (26, 2995390), (52, 1497695), (65, 1198156), (130, 599078), (260, 299539)]