201995920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1831}}^1$

素因数の和:2048

約数の個数: 80

約数和(自身を含む): 539751168

約数和(自身を除く): 337755248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 788, 985, 1379, 1576, 1831, 1970, 2758, 3152, 3662, 3940, 5516, 6895, 7324, 7880, 9155, 11032, 12817, 13790, 14648, 15760, 18310, 22064, 25634, 27580, 29296, 36620, 51268, 55160, 64085, 73240, 102536, 110320, 128170, 146480, 205072, 256340, 360707, 512680, 721414, 1025360, 1442828, 1803535, 2524949, 2885656, 3607070, 5049898, 5771312, 7214140, 10099796, 12624745, 14428280, 20199592, 25249490, 28856560, 40399184, 50498980, 100997960, 201995920]

約数ペア:

[(1, 201995920), (2, 100997960), (4, 50498980), (5, 40399184), (7, 28856560), (8, 25249490), (10, 20199592), (14, 14428280), (16, 12624745), (20, 10099796), (28, 7214140), (35, 5771312), (40, 5049898), (56, 3607070), (70, 2885656), (80, 2524949), (112, 1803535), (140, 1442828), (197, 1025360), (280, 721414), (394, 512680), (560, 360707), (788, 256340), (985, 205072), (1379, 146480), (1576, 128170), (1831, 110320), (1970, 102536), (2758, 73240), (3152, 64085), (3662, 55160), (3940, 51268), (5516, 36620), (6895, 29296), (7324, 27580), (7880, 25634), (9155, 22064), (11032, 18310), (12817, 15760), (13790, 14648)]