19982100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1609

約数の個数: 72

約数和(自身を含む): 59197600

約数和(自身を除く): 39215500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 129, 150, 172, 215, 258, 300, 430, 516, 645, 860, 1075, 1290, 1549, 2150, 2580, 3098, 3225, 4300, 4647, 6196, 6450, 7745, 9294, 12900, 15490, 18588, 23235, 30980, 38725, 46470, 66607, 77450, 92940, 116175, 133214, 154900, 199821, 232350, 266428, 333035, 399642, 464700, 666070, 799284, 999105, 1332140, 1665175, 1998210, 3330350, 3996420, 4995525, 6660700, 9991050, 19982100]

約数ペア:

[(1, 19982100), (2, 9991050), (3, 6660700), (4, 4995525), (5, 3996420), (6, 3330350), (10, 1998210), (12, 1665175), (15, 1332140), (20, 999105), (25, 799284), (30, 666070), (43, 464700), (50, 399642), (60, 333035), (75, 266428), (86, 232350), (100, 199821), (129, 154900), (150, 133214), (172, 116175), (215, 92940), (258, 77450), (300, 66607), (430, 46470), (516, 38725), (645, 30980), (860, 23235), (1075, 18588), (1290, 15490), (1549, 12900), (2150, 9294), (2580, 7745), (3098, 6450), (3225, 6196), (4300, 4647)]