61997985

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:963

約数の個数: 72

約数和(自身を含む): 129182976

約数和(自身を除く): 67184991

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 49, 63, 93, 105, 147, 155, 217, 245, 279, 315, 441, 465, 651, 735, 907, 1085, 1395, 1519, 1953, 2205, 2721, 3255, 4535, 4557, 6349, 7595, 8163, 9765, 13605, 13671, 19047, 22785, 28117, 31745, 40815, 44443, 57141, 68355, 84351, 95235, 133329, 140585, 196819, 222215, 253053, 285705, 399987, 421755, 590457, 666645, 984095, 1265265, 1377733, 1771371, 1999935, 2952285, 4133199, 6888665, 8856855, 12399597, 20665995, 61997985]

約数ペア:

[(1, 61997985), (3, 20665995), (5, 12399597), (7, 8856855), (9, 6888665), (15, 4133199), (21, 2952285), (31, 1999935), (35, 1771371), (45, 1377733), (49, 1265265), (63, 984095), (93, 666645), (105, 590457), (147, 421755), (155, 399987), (217, 285705), (245, 253053), (279, 222215), (315, 196819), (441, 140585), (465, 133329), (651, 95235), (735, 84351), (907, 68355), (1085, 57141), (1395, 44443), (1519, 40815), (1953, 31745), (2205, 28117), (2721, 22785), (3255, 19047), (4535, 13671), (4557, 13605), (6349, 9765), (7595, 8163)]