19367020

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 41983200

約数和(自身を除く): 22616180

約数列:

[1, 2, 4, 5, 10, 20, 67, 97, 134, 149, 194, 268, 298, 335, 388, 485, 596, 670, 745, 970, 1340, 1490, 1940, 2980, 6499, 9983, 12998, 14453, 19966, 25996, 28906, 32495, 39932, 49915, 57812, 64990, 72265, 99830, 129980, 144530, 199660, 289060, 968351, 1936702, 3873404, 4841755, 9683510, 19367020]

約数ペア:

[(1, 19367020), (2, 9683510), (4, 4841755), (5, 3873404), (10, 1936702), (20, 968351), (67, 289060), (97, 199660), (134, 144530), (149, 129980), (194, 99830), (268, 72265), (298, 64990), (335, 57812), (388, 49915), (485, 39932), (596, 32495), (670, 28906), (745, 25996), (970, 19966), (1340, 14453), (1490, 12998), (1940, 9983), (2980, 6499)]