19064380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 41884416

約数和(自身を除く): 22820036

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 97, 124, 155, 194, 310, 317, 388, 485, 620, 634, 970, 1268, 1585, 1940, 3007, 3170, 6014, 6340, 9827, 12028, 15035, 19654, 30070, 30749, 39308, 49135, 60140, 61498, 98270, 122996, 153745, 196540, 307490, 614980, 953219, 1906438, 3812876, 4766095, 9532190, 19064380]

約数ペア:

[(1, 19064380), (2, 9532190), (4, 4766095), (5, 3812876), (10, 1906438), (20, 953219), (31, 614980), (62, 307490), (97, 196540), (124, 153745), (155, 122996), (194, 98270), (310, 61498), (317, 60140), (388, 49135), (485, 39308), (620, 30749), (634, 30070), (970, 19654), (1268, 15035), (1585, 12028), (1940, 9827), (3007, 6340), (3170, 6014)]