256573005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{769}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 465696000

約数和(自身を除く): 209122995

約数列:

[1, 3, 5, 13, 15, 29, 39, 59, 65, 87, 145, 177, 195, 295, 377, 435, 767, 769, 885, 1131, 1711, 1885, 2301, 2307, 3835, 3845, 5133, 5655, 8555, 9997, 11505, 11535, 22243, 22301, 25665, 29991, 45371, 49985, 66729, 66903, 111215, 111505, 136113, 149955, 226855, 289913, 333645, 334515, 589823, 680565, 869739, 1315759, 1449565, 1769469, 2949115, 3947277, 4348695, 6578795, 8847345, 17104867, 19736385, 51314601, 85524335, 256573005]

約数ペア:

[(1, 256573005), (3, 85524335), (5, 51314601), (13, 19736385), (15, 17104867), (29, 8847345), (39, 6578795), (59, 4348695), (65, 3947277), (87, 2949115), (145, 1769469), (177, 1449565), (195, 1315759), (295, 869739), (377, 680565), (435, 589823), (767, 334515), (769, 333645), (885, 289913), (1131, 226855), (1711, 149955), (1885, 136113), (2301, 111505), (2307, 111215), (3835, 66903), (3845, 66729), (5133, 49985), (5655, 45371), (8555, 29991), (9997, 25665), (11505, 22301), (11535, 22243)]