55980340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{215309}}^1$

素因数の和:215331

約数の個数: 24

約数和(自身を含む): 126602280

約数和(自身を除く): 70621940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 215309, 430618, 861236, 1076545, 2153090, 2799017, 4306180, 5598034, 11196068, 13995085, 27990170, 55980340]

約数ペア:

[(1, 55980340), (2, 27990170), (4, 13995085), (5, 11196068), (10, 5598034), (13, 4306180), (20, 2799017), (26, 2153090), (52, 1076545), (65, 861236), (130, 430618), (260, 215309)]