1298745

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:75

約数の個数: 72

約数和(自身を含む): 2845440

約数和(自身を除く): 1546695

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 31, 35, 45, 49, 57, 63, 93, 95, 105, 133, 147, 155, 171, 217, 245, 279, 285, 315, 399, 441, 465, 589, 651, 665, 735, 855, 931, 1085, 1197, 1395, 1519, 1767, 1953, 1995, 2205, 2793, 2945, 3255, 4123, 4557, 4655, 5301, 5985, 7595, 8379, 8835, 9765, 12369, 13671, 13965, 20615, 22785, 26505, 28861, 37107, 41895, 61845, 68355, 86583, 144305, 185535, 259749, 432915, 1298745]

約数ペア:

[(1, 1298745), (3, 432915), (5, 259749), (7, 185535), (9, 144305), (15, 86583), (19, 68355), (21, 61845), (31, 41895), (35, 37107), (45, 28861), (49, 26505), (57, 22785), (63, 20615), (93, 13965), (95, 13671), (105, 12369), (133, 9765), (147, 8835), (155, 8379), (171, 7595), (217, 5985), (245, 5301), (279, 4655), (285, 4557), (315, 4123), (399, 3255), (441, 2945), (465, 2793), (589, 2205), (651, 1995), (665, 1953), (735, 1767), (855, 1519), (931, 1395), (1085, 1197)]