213991180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{63311}}^1$

素因数の和:63346

約数の個数: 36

約数和(自身を含む): 486616032

約数和(自身を除く): 272624852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 63311, 126622, 253244, 316555, 633110, 823043, 1266220, 1646086, 3292172, 4115215, 8230430, 10699559, 16460860, 21399118, 42798236, 53497795, 106995590, 213991180]

約数ペア:

[(1, 213991180), (2, 106995590), (4, 53497795), (5, 42798236), (10, 21399118), (13, 16460860), (20, 10699559), (26, 8230430), (52, 4115215), (65, 3292172), (130, 1646086), (169, 1266220), (260, 823043), (338, 633110), (676, 316555), (845, 253244), (1690, 126622), (3380, 63311)]