20569640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5651}}^1$

素因数の和:5682

約数の個数: 64

約数和(自身を含む): 56972160

約数和(自身を除く): 36402520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5651, 11302, 22604, 28255, 39557, 45208, 56510, 73463, 79114, 113020, 146926, 158228, 197785, 226040, 293852, 316456, 367315, 395570, 514241, 587704, 734630, 791140, 1028482, 1469260, 1582280, 2056964, 2571205, 2938520, 4113928, 5142410, 10284820, 20569640]

約数ペア:

[(1, 20569640), (2, 10284820), (4, 5142410), (5, 4113928), (7, 2938520), (8, 2571205), (10, 2056964), (13, 1582280), (14, 1469260), (20, 1028482), (26, 791140), (28, 734630), (35, 587704), (40, 514241), (52, 395570), (56, 367315), (65, 316456), (70, 293852), (91, 226040), (104, 197785), (130, 158228), (140, 146926), (182, 113020), (260, 79114), (280, 73463), (364, 56510), (455, 45208), (520, 39557), (728, 28255), (910, 22604), (1820, 11302), (3640, 5651)]