256441490

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{38447}}^1$

素因数の和:38506

約数の個数: 32

約数和(自身を含む): 498286080

約数和(自身を除く): 241844590

約数列:

[1, 2, 5, 10, 23, 29, 46, 58, 115, 145, 230, 290, 667, 1334, 3335, 6670, 38447, 76894, 192235, 384470, 884281, 1114963, 1768562, 2229926, 4421405, 5574815, 8842810, 11149630, 25644149, 51288298, 128220745, 256441490]

約数ペア:

[(1, 256441490), (2, 128220745), (5, 51288298), (10, 25644149), (23, 11149630), (29, 8842810), (46, 5574815), (58, 4421405), (115, 2229926), (145, 1768562), (230, 1114963), (290, 884281), (667, 384470), (1334, 192235), (3335, 76894), (6670, 38447)]