205585900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{158143}}^1$

素因数の和:158170

約数の個数: 36

約数和(自身を含む): 480441472

約数和(自身を除く): 274855572

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 158143, 316286, 632572, 790715, 1581430, 2055859, 3162860, 3953575, 4111718, 7907150, 8223436, 10279295, 15814300, 20558590, 41117180, 51396475, 102792950, 205585900]

約数ペア:

[(1, 205585900), (2, 102792950), (4, 51396475), (5, 41117180), (10, 20558590), (13, 15814300), (20, 10279295), (25, 8223436), (26, 7907150), (50, 4111718), (52, 3953575), (65, 3162860), (100, 2055859), (130, 1581430), (260, 790715), (325, 632572), (650, 316286), (1300, 158143)]