19749900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1531}}^1$

素因数の和:1591

約数の個数: 72

約数和(自身を含む): 58510144

約数和(自身を除く): 38760244

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, 1531, 2150, 2580, 3062, 3225, 4300, 4593, 6124, 6450, 7655, 9186, 12900, 15310, 18372, 22965, 30620, 38275, 45930, 65833, 76550, 91860, 114825, 131666, 153100, 197499, 229650, 263332, 329165, 394998, 459300, 658330, 789996, 987495, 1316660, 1645825, 1974990, 3291650, 3949980, 4937475, 6583300, 9874950, 19749900]

約数ペア:

[(1, 19749900), (2, 9874950), (3, 6583300), (4, 4937475), (5, 3949980), (6, 3291650), (10, 1974990), (12, 1645825), (15, 1316660), (20, 987495), (25, 789996), (30, 658330), (43, 459300), (50, 394998), (60, 329165), (75, 263332), (86, 229650), (100, 197499), (129, 153100), (150, 131666), (172, 114825), (215, 91860), (258, 76550), (300, 65833), (430, 45930), (516, 38275), (645, 30620), (860, 22965), (1075, 18372), (1290, 15310), (1531, 12900), (2150, 9186), (2580, 7655), (3062, 6450), (3225, 6124), (4300, 4593)]