400997245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1\times {\mathrm{491}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 544112640

約数和(自身を除く): 143115395

約数列:

[1, 5, 11, 31, 55, 155, 341, 479, 491, 1705, 2395, 2455, 5269, 5401, 14849, 15221, 26345, 27005, 74245, 76105, 163339, 167431, 235189, 816695, 837155, 1175945, 2587079, 7290859, 12935395, 36454295, 80199449, 400997245]

約数ペア:

[(1, 400997245), (5, 80199449), (11, 36454295), (31, 12935395), (55, 7290859), (155, 2587079), (341, 1175945), (479, 837155), (491, 816695), (1705, 235189), (2395, 167431), (2455, 163339), (5269, 76105), (5401, 74245), (14849, 27005), (15221, 26345)]