80906679

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{569}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 139663680

約数和(自身を除く): 58757001

約数列:

[1, 3, 7, 9, 21, 37, 61, 63, 111, 183, 259, 333, 427, 549, 569, 777, 1281, 1707, 2257, 2331, 3843, 3983, 5121, 6771, 11949, 15799, 20313, 21053, 34709, 35847, 47397, 63159, 104127, 142191, 147371, 189477, 242963, 312381, 442113, 728889, 1284233, 1326339, 2186667, 3852699, 8989631, 11558097, 26968893, 80906679]

約数ペア:

[(1, 80906679), (3, 26968893), (7, 11558097), (9, 8989631), (21, 3852699), (37, 2186667), (61, 1326339), (63, 1284233), (111, 728889), (183, 442113), (259, 312381), (333, 242963), (427, 189477), (549, 147371), (569, 142191), (777, 104127), (1281, 63159), (1707, 47397), (2257, 35847), (2331, 34709), (3843, 21053), (3983, 20313), (5121, 15799), (6771, 11949)]