20163419648

素因数分解:

$2^9\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{4649}}^1$

素因数の和:4907

約数の個数: 80

約数和(自身を含む): 41442548400

約数和(自身を除く): 21279128752

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 197, 256, 344, 394, 512, 688, 788, 1376, 1576, 2752, 3152, 4649, 5504, 6304, 8471, 9298, 11008, 12608, 16942, 18596, 22016, 25216, 33884, 37192, 50432, 67768, 74384, 100864, 135536, 148768, 199907, 271072, 297536, 399814, 542144, 595072, 799628, 915853, 1084288, 1190144, 1599256, 1831706, 2168576, 2380288, 3198512, 3663412, 4337152, 6397024, 7326824, 12794048, 14653648, 25588096, 29307296, 39381679, 51176192, 58614592, 78763358, 102352384, 117229184, 157526716, 234458368, 315053432, 468916736, 630106864, 1260213728, 2520427456, 5040854912, 10081709824, 20163419648]

約数ペア:

[(1, 20163419648), (2, 10081709824), (4, 5040854912), (8, 2520427456), (16, 1260213728), (32, 630106864), (43, 468916736), (64, 315053432), (86, 234458368), (128, 157526716), (172, 117229184), (197, 102352384), (256, 78763358), (344, 58614592), (394, 51176192), (512, 39381679), (688, 29307296), (788, 25588096), (1376, 14653648), (1576, 12794048), (2752, 7326824), (3152, 6397024), (4649, 4337152), (5504, 3663412), (6304, 3198512), (8471, 2380288), (9298, 2168576), (11008, 1831706), (12608, 1599256), (16942, 1190144), (18596, 1084288), (22016, 915853), (25216, 799628), (33884, 595072), (37192, 542144), (50432, 399814), (67768, 297536), (74384, 271072), (100864, 199907), (135536, 148768)]