19151680

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{617}}^1$

素因数の和:731

約数の個数: 56

約数和(自身を含む): 46149768

約数和(自身を除く): 26998088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 617, 776, 970, 1234, 1552, 1940, 2468, 3085, 3104, 3880, 4936, 6170, 6208, 7760, 9872, 12340, 15520, 19744, 24680, 31040, 39488, 49360, 59849, 98720, 119698, 197440, 239396, 299245, 478792, 598490, 957584, 1196980, 1915168, 2393960, 3830336, 4787920, 9575840, 19151680]

約数ペア:

[(1, 19151680), (2, 9575840), (4, 4787920), (5, 3830336), (8, 2393960), (10, 1915168), (16, 1196980), (20, 957584), (32, 598490), (40, 478792), (64, 299245), (80, 239396), (97, 197440), (160, 119698), (194, 98720), (320, 59849), (388, 49360), (485, 39488), (617, 31040), (776, 24680), (970, 19744), (1234, 15520), (1552, 12340), (1940, 9872), (2468, 7760), (3085, 6208), (3104, 6170), (3880, 4936)]