19122350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 72

約数和(自身を含む): 40300992

約数和(自身を除く): 21178642

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 73, 130, 146, 155, 169, 310, 325, 338, 365, 403, 650, 730, 775, 806, 845, 949, 1550, 1690, 1825, 1898, 2015, 2263, 3650, 4030, 4225, 4526, 4745, 5239, 8450, 9490, 10075, 10478, 11315, 12337, 20150, 22630, 23725, 24674, 26195, 29419, 47450, 52390, 56575, 58838, 61685, 113150, 123370, 130975, 147095, 261950, 294190, 308425, 382447, 616850, 735475, 764894, 1470950, 1912235, 3824470, 9561175, 19122350]

約数ペア:

[(1, 19122350), (2, 9561175), (5, 3824470), (10, 1912235), (13, 1470950), (25, 764894), (26, 735475), (31, 616850), (50, 382447), (62, 308425), (65, 294190), (73, 261950), (130, 147095), (146, 130975), (155, 123370), (169, 113150), (310, 61685), (325, 58838), (338, 56575), (365, 52390), (403, 47450), (650, 29419), (730, 26195), (775, 24674), (806, 23725), (845, 22630), (949, 20150), (1550, 12337), (1690, 11315), (1825, 10478), (1898, 10075), (2015, 9490), (2263, 8450), (3650, 5239), (4030, 4745), (4225, 4526)]