19858680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55163}}^1$

素因数の和:55180

約数の個数: 48

約数和(自身を含む): 64541880

約数和(自身を除く): 44683200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55163, 110326, 165489, 220652, 275815, 330978, 441304, 496467, 551630, 661956, 827445, 992934, 1103260, 1323912, 1654890, 1985868, 2206520, 2482335, 3309780, 3971736, 4964670, 6619560, 9929340, 19858680]

約数ペア:

[(1, 19858680), (2, 9929340), (3, 6619560), (4, 4964670), (5, 3971736), (6, 3309780), (8, 2482335), (9, 2206520), (10, 1985868), (12, 1654890), (15, 1323912), (18, 1103260), (20, 992934), (24, 827445), (30, 661956), (36, 551630), (40, 496467), (45, 441304), (60, 330978), (72, 275815), (90, 220652), (120, 165489), (180, 110326), (360, 55163)]