18875920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{911}}^1$

素因数の和:968

約数の個数: 80

約数和(自身を含む): 51568128

約数和(自身を除く): 32692208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 911, 1036, 1295, 1480, 1822, 2072, 2590, 2960, 3644, 4144, 4555, 5180, 6377, 7288, 9110, 10360, 12754, 14576, 18220, 20720, 25508, 31885, 33707, 36440, 51016, 63770, 67414, 72880, 102032, 127540, 134828, 168535, 235949, 255080, 269656, 337070, 471898, 510160, 539312, 674140, 943796, 1179745, 1348280, 1887592, 2359490, 2696560, 3775184, 4718980, 9437960, 18875920]

約数ペア:

[(1, 18875920), (2, 9437960), (4, 4718980), (5, 3775184), (7, 2696560), (8, 2359490), (10, 1887592), (14, 1348280), (16, 1179745), (20, 943796), (28, 674140), (35, 539312), (37, 510160), (40, 471898), (56, 337070), (70, 269656), (74, 255080), (80, 235949), (112, 168535), (140, 134828), (148, 127540), (185, 102032), (259, 72880), (280, 67414), (296, 63770), (370, 51016), (518, 36440), (560, 33707), (592, 31885), (740, 25508), (911, 20720), (1036, 18220), (1295, 14576), (1480, 12754), (1822, 10360), (2072, 9110), (2590, 7288), (2960, 6377), (3644, 5180), (4144, 4555)]