20142472

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 45504000

約数和(自身を除く): 25361528

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 79, 116, 157, 158, 203, 232, 314, 316, 406, 553, 628, 632, 812, 1099, 1106, 1256, 1624, 2198, 2212, 2291, 4396, 4424, 4553, 4582, 8792, 9106, 9164, 12403, 16037, 18212, 18328, 24806, 31871, 32074, 36424, 49612, 63742, 64148, 86821, 99224, 127484, 128296, 173642, 254968, 347284, 359687, 694568, 719374, 1438748, 2517809, 2877496, 5035618, 10071236, 20142472]

約数ペア:

[(1, 20142472), (2, 10071236), (4, 5035618), (7, 2877496), (8, 2517809), (14, 1438748), (28, 719374), (29, 694568), (56, 359687), (58, 347284), (79, 254968), (116, 173642), (157, 128296), (158, 127484), (203, 99224), (232, 86821), (314, 64148), (316, 63742), (406, 49612), (553, 36424), (628, 32074), (632, 31871), (812, 24806), (1099, 18328), (1106, 18212), (1256, 16037), (1624, 12403), (2198, 9164), (2212, 9106), (2291, 8792), (4396, 4582), (4424, 4553)]