19035920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13997}}^1$

素因数の和:14027

約数の個数: 40

約数和(自身を含む): 46865304

約数和(自身を除く): 27829384

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13997, 27994, 55988, 69985, 111976, 139970, 223952, 237949, 279940, 475898, 559880, 951796, 1119760, 1189745, 1903592, 2379490, 3807184, 4758980, 9517960, 19035920]

約数ペア:

[(1, 19035920), (2, 9517960), (4, 4758980), (5, 3807184), (8, 2379490), (10, 1903592), (16, 1189745), (17, 1119760), (20, 951796), (34, 559880), (40, 475898), (68, 279940), (80, 237949), (85, 223952), (136, 139970), (170, 111976), (272, 69985), (340, 55988), (680, 27994), (1360, 13997)]