20797120

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3823}}^1$

素因数の和:3857

約数の個数: 56

約数和(自身を含む): 52449984

約数和(自身を除く): 31652864

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3823, 5440, 7646, 15292, 19115, 30584, 38230, 61168, 64991, 76460, 122336, 129982, 152920, 244672, 259964, 305840, 324955, 519928, 611680, 649910, 1039856, 1223360, 1299820, 2079712, 2599640, 4159424, 5199280, 10398560, 20797120]

約数ペア:

[(1, 20797120), (2, 10398560), (4, 5199280), (5, 4159424), (8, 2599640), (10, 2079712), (16, 1299820), (17, 1223360), (20, 1039856), (32, 649910), (34, 611680), (40, 519928), (64, 324955), (68, 305840), (80, 259964), (85, 244672), (136, 152920), (160, 129982), (170, 122336), (272, 76460), (320, 64991), (340, 61168), (544, 38230), (680, 30584), (1088, 19115), (1360, 15292), (2720, 7646), (3823, 5440)]