20278370645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7255231}}^1$

素因数の和:7255292

約数の個数: 16

約数和(自身を含む): 26815337472

約数和(自身を除く): 6536966827

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7255231, 36276155, 94318003, 311974933, 471590015, 1559874665, 4055674129, 20278370645]

約数ペア:

[(1, 20278370645), (5, 4055674129), (13, 1559874665), (43, 471590015), (65, 311974933), (215, 94318003), (559, 36276155), (2795, 7255231)]