81712872

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^2\times {\mathrm{829}}^1$

素因数の和:915

約数の個数: 72

約数和(自身を含む): 227722950

約数和(自身を除く): 146010078

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 829, 888, 1332, 1369, 1658, 2487, 2664, 2738, 3316, 4107, 4974, 5476, 6632, 7461, 8214, 9948, 10952, 12321, 14922, 16428, 19896, 24642, 29844, 30673, 32856, 49284, 59688, 61346, 92019, 98568, 122692, 184038, 245384, 276057, 368076, 552114, 736152, 1104228, 1134901, 2208456, 2269802, 3404703, 4539604, 6809406, 9079208, 10214109, 13618812, 20428218, 27237624, 40856436, 81712872]

約数ペア:

[(1, 81712872), (2, 40856436), (3, 27237624), (4, 20428218), (6, 13618812), (8, 10214109), (9, 9079208), (12, 6809406), (18, 4539604), (24, 3404703), (36, 2269802), (37, 2208456), (72, 1134901), (74, 1104228), (111, 736152), (148, 552114), (222, 368076), (296, 276057), (333, 245384), (444, 184038), (666, 122692), (829, 98568), (888, 92019), (1332, 61346), (1369, 59688), (1658, 49284), (2487, 32856), (2664, 30673), (2738, 29844), (3316, 24642), (4107, 19896), (4974, 16428), (5476, 14922), (6632, 12321), (7461, 10952), (8214, 9948)]