19766351120

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1229}}^1\times {\mathrm{1583}}^1$

素因数の和:2952

約数の個数: 80

約数和(自身を含む): 46385602560

約数和(自身を除く): 26619251440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1229, 1270, 1583, 2032, 2458, 2540, 3166, 4916, 5080, 6145, 6332, 7915, 9832, 10160, 12290, 12664, 15830, 19664, 24580, 25328, 31660, 49160, 63320, 98320, 126640, 156083, 201041, 312166, 402082, 624332, 780415, 804164, 1005205, 1248664, 1560830, 1608328, 1945507, 2010410, 2497328, 3121660, 3216656, 3891014, 4020820, 6243320, 7782028, 8041640, 9727535, 12486640, 15564056, 16083280, 19455070, 31128112, 38910140, 77820280, 155640560, 247079389, 494158778, 988317556, 1235396945, 1976635112, 2470793890, 3953270224, 4941587780, 9883175560, 19766351120]

約数ペア:

[(1, 19766351120), (2, 9883175560), (4, 4941587780), (5, 3953270224), (8, 2470793890), (10, 1976635112), (16, 1235396945), (20, 988317556), (40, 494158778), (80, 247079389), (127, 155640560), (254, 77820280), (508, 38910140), (635, 31128112), (1016, 19455070), (1229, 16083280), (1270, 15564056), (1583, 12486640), (2032, 9727535), (2458, 8041640), (2540, 7782028), (3166, 6243320), (4916, 4020820), (5080, 3891014), (6145, 3216656), (6332, 3121660), (7915, 2497328), (9832, 2010410), (10160, 1945507), (12290, 1608328), (12664, 1560830), (15830, 1248664), (19664, 1005205), (24580, 804164), (25328, 780415), (31660, 624332), (49160, 402082), (63320, 312166), (98320, 201041), (126640, 156083)]