90720378

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2243}}^1$

素因数の和:2368

約数の個数: 64

約数和(自身を含む): 232657920

約数和(自身を除く): 141937542

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 107, 126, 189, 214, 321, 378, 642, 749, 963, 1498, 1926, 2243, 2247, 2889, 4486, 4494, 5778, 6729, 6741, 13458, 13482, 15701, 20187, 20223, 31402, 40374, 40446, 47103, 60561, 94206, 121122, 141309, 240001, 282618, 423927, 480002, 720003, 847854, 1440006, 1680007, 2160009, 3360014, 4320018, 5040021, 6480027, 10080042, 12960054, 15120063, 30240126, 45360189, 90720378]

約数ペア:

[(1, 90720378), (2, 45360189), (3, 30240126), (6, 15120063), (7, 12960054), (9, 10080042), (14, 6480027), (18, 5040021), (21, 4320018), (27, 3360014), (42, 2160009), (54, 1680007), (63, 1440006), (107, 847854), (126, 720003), (189, 480002), (214, 423927), (321, 282618), (378, 240001), (642, 141309), (749, 121122), (963, 94206), (1498, 60561), (1926, 47103), (2243, 40446), (2247, 40374), (2889, 31402), (4486, 20223), (4494, 20187), (5778, 15701), (6729, 13482), (6741, 13458)]