19499060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 48349224

約数和(自身を除く): 28850164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 196, 197, 202, 245, 394, 404, 490, 505, 707, 788, 980, 985, 1010, 1379, 1414, 1970, 2020, 2758, 2828, 3535, 3940, 4949, 5516, 6895, 7070, 9653, 9898, 13790, 14140, 19306, 19796, 19897, 24745, 27580, 38612, 39794, 48265, 49490, 79588, 96530, 98980, 99485, 139279, 193060, 198970, 278558, 397940, 557116, 696395, 974953, 1392790, 1949906, 2785580, 3899812, 4874765, 9749530, 19499060]

約数ペア:

[(1, 19499060), (2, 9749530), (4, 4874765), (5, 3899812), (7, 2785580), (10, 1949906), (14, 1392790), (20, 974953), (28, 696395), (35, 557116), (49, 397940), (70, 278558), (98, 198970), (101, 193060), (140, 139279), (196, 99485), (197, 98980), (202, 96530), (245, 79588), (394, 49490), (404, 48265), (490, 39794), (505, 38612), (707, 27580), (788, 24745), (980, 19897), (985, 19796), (1010, 19306), (1379, 14140), (1414, 13790), (1970, 9898), (2020, 9653), (2758, 7070), (2828, 6895), (3535, 5516), (3940, 4949)]