388236880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{255419}}^1$

素因数の和:255451

約数の個数: 40

約数和(自身を含む): 950162400

約数和(自身を除く): 561925520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 255419, 510838, 1021676, 1277095, 2043352, 2554190, 4086704, 4852961, 5108380, 9705922, 10216760, 19411844, 20433520, 24264805, 38823688, 48529610, 77647376, 97059220, 194118440, 388236880]

約数ペア:

[(1, 388236880), (2, 194118440), (4, 97059220), (5, 77647376), (8, 48529610), (10, 38823688), (16, 24264805), (19, 20433520), (20, 19411844), (38, 10216760), (40, 9705922), (76, 5108380), (80, 4852961), (95, 4086704), (152, 2554190), (190, 2043352), (304, 1277095), (380, 1021676), (760, 510838), (1520, 255419)]