20009535

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 40061952

約数和(自身を除く): 20052417

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 107, 137, 195, 273, 321, 411, 455, 535, 685, 749, 959, 1365, 1391, 1605, 1781, 2055, 2247, 2877, 3745, 4173, 4795, 5343, 6955, 8905, 9737, 11235, 12467, 14385, 14659, 20865, 26715, 29211, 37401, 43977, 48685, 62335, 73295, 102613, 146055, 187005, 190567, 219885, 307839, 513065, 571701, 952835, 1333969, 1539195, 2858505, 4001907, 6669845, 20009535]

約数ペア:

[(1, 20009535), (3, 6669845), (5, 4001907), (7, 2858505), (13, 1539195), (15, 1333969), (21, 952835), (35, 571701), (39, 513065), (65, 307839), (91, 219885), (105, 190567), (107, 187005), (137, 146055), (195, 102613), (273, 73295), (321, 62335), (411, 48685), (455, 43977), (535, 37401), (685, 29211), (749, 26715), (959, 20865), (1365, 14659), (1391, 14385), (1605, 12467), (1781, 11235), (2055, 9737), (2247, 8905), (2877, 6955), (3745, 5343), (4173, 4795)]