81385164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7877}}^1$

素因数の和:7935

約数の個数: 72

約数和(自身を含む): 240877728

約数和(自身を除く): 159492564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 2583, 3444, 5166, 7877, 10332, 15754, 23631, 31508, 47262, 55139, 70893, 94524, 110278, 141786, 165417, 220556, 283572, 322957, 330834, 496251, 645914, 661668, 968871, 992502, 1291828, 1937742, 1985004, 2260699, 2906613, 3875484, 4521398, 5813226, 6782097, 9042796, 11626452, 13564194, 20346291, 27128388, 40692582, 81385164]

約数ペア:

[(1, 81385164), (2, 40692582), (3, 27128388), (4, 20346291), (6, 13564194), (7, 11626452), (9, 9042796), (12, 6782097), (14, 5813226), (18, 4521398), (21, 3875484), (28, 2906613), (36, 2260699), (41, 1985004), (42, 1937742), (63, 1291828), (82, 992502), (84, 968871), (123, 661668), (126, 645914), (164, 496251), (246, 330834), (252, 322957), (287, 283572), (369, 220556), (492, 165417), (574, 141786), (738, 110278), (861, 94524), (1148, 70893), (1476, 55139), (1722, 47262), (2583, 31508), (3444, 23631), (5166, 15754), (7877, 10332)]