251011443

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 393154560

約数和(自身を除く): 142143117

約数列:

[1, 3, 17, 23, 29, 47, 51, 69, 87, 141, 157, 391, 471, 493, 667, 799, 1081, 1173, 1363, 1479, 2001, 2397, 2669, 3243, 3611, 4089, 4553, 7379, 8007, 10833, 11339, 13659, 18377, 22137, 23171, 31349, 34017, 55131, 61387, 69513, 77401, 94047, 104719, 125443, 169717, 184161, 213991, 232203, 314157, 376329, 509151, 532933, 641973, 1598799, 1780223, 2885189, 3637847, 4921793, 5340669, 8655567, 10913541, 14765379, 83670481, 251011443]

約数ペア:

[(1, 251011443), (3, 83670481), (17, 14765379), (23, 10913541), (29, 8655567), (47, 5340669), (51, 4921793), (69, 3637847), (87, 2885189), (141, 1780223), (157, 1598799), (391, 641973), (471, 532933), (493, 509151), (667, 376329), (799, 314157), (1081, 232203), (1173, 213991), (1363, 184161), (1479, 169717), (2001, 125443), (2397, 104719), (2669, 94047), (3243, 77401), (3611, 69513), (4089, 61387), (4553, 55131), (7379, 34017), (8007, 31349), (10833, 23171), (11339, 22137), (13659, 18377)]