220481838

素因数分解:

$2^1\times 3^4\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:775

約数の個数: 80

約数和(自身を含む): 519060960

約数和(自身を除く): 298579122

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 71, 81, 87, 142, 162, 174, 213, 261, 426, 522, 639, 661, 783, 1278, 1322, 1566, 1917, 1983, 2059, 2349, 3834, 3966, 4118, 4698, 5751, 5949, 6177, 11502, 11898, 12354, 17847, 18531, 19169, 35694, 37062, 38338, 46931, 53541, 55593, 57507, 93862, 107082, 111186, 115014, 140793, 166779, 172521, 281586, 333558, 345042, 422379, 517563, 844758, 1035126, 1267137, 1360999, 1552689, 2534274, 2721998, 3105378, 3801411, 4082997, 7602822, 8165994, 12248991, 24497982, 36746973, 73493946, 110240919, 220481838]

約数ペア:

[(1, 220481838), (2, 110240919), (3, 73493946), (6, 36746973), (9, 24497982), (18, 12248991), (27, 8165994), (29, 7602822), (54, 4082997), (58, 3801411), (71, 3105378), (81, 2721998), (87, 2534274), (142, 1552689), (162, 1360999), (174, 1267137), (213, 1035126), (261, 844758), (426, 517563), (522, 422379), (639, 345042), (661, 333558), (783, 281586), (1278, 172521), (1322, 166779), (1566, 140793), (1917, 115014), (1983, 111186), (2059, 107082), (2349, 93862), (3834, 57507), (3966, 55593), (4118, 53541), (4698, 46931), (5751, 38338), (5949, 37062), (6177, 35694), (11502, 19169), (11898, 18531), (12354, 17847)]