261561260

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{9811}}^1$

素因数の和:9894

約数の個数: 48

約数和(自身を含む): 580242432

約数和(自身を除く): 318681172

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1333, 2666, 5332, 6665, 9811, 13330, 19622, 26660, 39244, 49055, 98110, 196220, 304141, 421873, 608282, 843746, 1216564, 1520705, 1687492, 2109365, 3041410, 4218730, 6082820, 8437460, 13078063, 26156126, 52312252, 65390315, 130780630, 261561260]

約数ペア:

[(1, 261561260), (2, 130780630), (4, 65390315), (5, 52312252), (10, 26156126), (20, 13078063), (31, 8437460), (43, 6082820), (62, 4218730), (86, 3041410), (124, 2109365), (155, 1687492), (172, 1520705), (215, 1216564), (310, 843746), (430, 608282), (620, 421873), (860, 304141), (1333, 196220), (2666, 98110), (5332, 49055), (6665, 39244), (9811, 26660), (13330, 19622)]