80831457

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 137280000

約数和(自身を除く): 56448543

約数列:

[1, 3, 7, 9, 21, 63, 79, 109, 149, 237, 327, 447, 553, 711, 763, 981, 1043, 1341, 1659, 2289, 3129, 4977, 6867, 8611, 9387, 11771, 16241, 25833, 35313, 48723, 60277, 77499, 82397, 105939, 113687, 146169, 180831, 247191, 341061, 542493, 741573, 1023183, 1283039, 3849117, 8981273, 11547351, 26943819, 80831457]

約数ペア:

[(1, 80831457), (3, 26943819), (7, 11547351), (9, 8981273), (21, 3849117), (63, 1283039), (79, 1023183), (109, 741573), (149, 542493), (237, 341061), (327, 247191), (447, 180831), (553, 146169), (711, 113687), (763, 105939), (981, 82397), (1043, 77499), (1341, 60277), (1659, 48723), (2289, 35313), (3129, 25833), (4977, 16241), (6867, 11771), (8611, 9387)]