245486540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{944179}}^1$

素因数の和:944201

約数の個数: 24

約数和(自身を含む): 555177840

約数和(自身を除く): 309691300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 944179, 1888358, 3776716, 4720895, 9441790, 12274327, 18883580, 24548654, 49097308, 61371635, 122743270, 245486540]

約数ペア:

[(1, 245486540), (2, 122743270), (4, 61371635), (5, 49097308), (10, 24548654), (13, 18883580), (20, 12274327), (26, 9441790), (52, 4720895), (65, 3776716), (130, 1888358), (260, 944179)]