20450916

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1031}}^1$

素因数の和:1089

約数の個数: 72

約数和(自身を含む): 56347200

約数和(自身を除く): 35896284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1031, 1044, 1102, 1653, 2062, 2204, 3093, 3306, 4124, 4959, 6186, 6612, 9279, 9918, 12372, 18558, 19589, 19836, 29899, 37116, 39178, 58767, 59798, 78356, 89697, 117534, 119596, 176301, 179394, 235068, 269091, 352602, 358788, 538182, 568081, 705204, 1076364, 1136162, 1704243, 2272324, 3408486, 5112729, 6816972, 10225458, 20450916]

約数ペア:

[(1, 20450916), (2, 10225458), (3, 6816972), (4, 5112729), (6, 3408486), (9, 2272324), (12, 1704243), (18, 1136162), (19, 1076364), (29, 705204), (36, 568081), (38, 538182), (57, 358788), (58, 352602), (76, 269091), (87, 235068), (114, 179394), (116, 176301), (171, 119596), (174, 117534), (228, 89697), (261, 78356), (342, 59798), (348, 58767), (522, 39178), (551, 37116), (684, 29899), (1031, 19836), (1044, 19589), (1102, 18558), (1653, 12372), (2062, 9918), (2204, 9279), (3093, 6612), (3306, 6186), (4124, 4959)]