81551886

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1163}}^1$

素因数の和:1241

約数の個数: 64

約数和(自身を含む): 187729920

約数和(自身を除く): 106178034

約数列:

[1, 2, 3, 6, 13, 26, 29, 31, 39, 58, 62, 78, 87, 93, 174, 186, 377, 403, 754, 806, 899, 1131, 1163, 1209, 1798, 2262, 2326, 2418, 2697, 3489, 5394, 6978, 11687, 15119, 23374, 30238, 33727, 35061, 36053, 45357, 67454, 70122, 72106, 90714, 101181, 108159, 202362, 216318, 438451, 468689, 876902, 937378, 1045537, 1315353, 1406067, 2091074, 2630706, 2812134, 3136611, 6273222, 13591981, 27183962, 40775943, 81551886]

約数ペア:

[(1, 81551886), (2, 40775943), (3, 27183962), (6, 13591981), (13, 6273222), (26, 3136611), (29, 2812134), (31, 2630706), (39, 2091074), (58, 1406067), (62, 1315353), (78, 1045537), (87, 937378), (93, 876902), (174, 468689), (186, 438451), (377, 216318), (403, 202362), (754, 108159), (806, 101181), (899, 90714), (1131, 72106), (1163, 70122), (1209, 67454), (1798, 45357), (2262, 36053), (2326, 35061), (2418, 33727), (2697, 30238), (3489, 23374), (5394, 15119), (6978, 11687)]