388758890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{175909}}^1$

素因数の和:175946

約数の個数: 32

約数和(自身を含む): 797927760

約数和(自身を除く): 409168870

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 175909, 351818, 879545, 1759090, 2286817, 2990453, 4573634, 5980906, 11434085, 14952265, 22868170, 29904530, 38875889, 77751778, 194379445, 388758890]

約数ペア:

[(1, 388758890), (2, 194379445), (5, 77751778), (10, 38875889), (13, 29904530), (17, 22868170), (26, 14952265), (34, 11434085), (65, 5980906), (85, 4573634), (130, 2990453), (170, 2286817), (221, 1759090), (442, 879545), (1105, 351818), (2210, 175909)]