81007164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{617}}^1$

素因数の和:1155

約数の個数: 72

約数和(自身を含む): 234849888

約数和(自身を除く): 153842724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 521, 617, 1042, 1234, 1563, 1851, 2084, 2468, 3126, 3647, 3702, 4319, 4689, 5553, 6252, 7294, 7404, 8638, 9378, 10941, 11106, 12957, 14588, 17276, 18756, 21882, 22212, 25914, 32823, 38871, 43764, 51828, 65646, 77742, 131292, 155484, 321457, 642914, 964371, 1285828, 1928742, 2250199, 2893113, 3857484, 4500398, 5786226, 6750597, 9000796, 11572452, 13501194, 20251791, 27002388, 40503582, 81007164]

約数ペア:

[(1, 81007164), (2, 40503582), (3, 27002388), (4, 20251791), (6, 13501194), (7, 11572452), (9, 9000796), (12, 6750597), (14, 5786226), (18, 4500398), (21, 3857484), (28, 2893113), (36, 2250199), (42, 1928742), (63, 1285828), (84, 964371), (126, 642914), (252, 321457), (521, 155484), (617, 131292), (1042, 77742), (1234, 65646), (1563, 51828), (1851, 43764), (2084, 38871), (2468, 32823), (3126, 25914), (3647, 22212), (3702, 21882), (4319, 18756), (4689, 17276), (5553, 14588), (6252, 12957), (7294, 11106), (7404, 10941), (8638, 9378)]