1279897437

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{557}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 2219857920

約数和(自身を除く): 939960483

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 443, 557, 741, 1329, 1671, 1729, 3101, 3899, 5187, 5759, 7241, 8417, 9303, 10583, 11697, 17277, 21723, 25251, 31749, 40313, 50687, 58919, 74081, 109421, 120939, 137579, 152061, 176757, 222243, 246751, 328263, 412737, 740253, 765947, 963053, 1727257, 2297841, 2889159, 3207763, 4688269, 5181771, 9623289, 14064807, 22454341, 32817883, 60947497, 67363023, 98453649, 182842491, 426632479, 1279897437]

約数ペア:

[(1, 1279897437), (3, 426632479), (7, 182842491), (13, 98453649), (19, 67363023), (21, 60947497), (39, 32817883), (57, 22454341), (91, 14064807), (133, 9623289), (247, 5181771), (273, 4688269), (399, 3207763), (443, 2889159), (557, 2297841), (741, 1727257), (1329, 963053), (1671, 765947), (1729, 740253), (3101, 412737), (3899, 328263), (5187, 246751), (5759, 222243), (7241, 176757), (8417, 152061), (9303, 137579), (10583, 120939), (11697, 109421), (17277, 74081), (21723, 58919), (25251, 50687), (31749, 40313)]