18921960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{52561}}^1$

素因数の和:52578

約数の個数: 48

約数和(自身を含む): 61497540

約数和(自身を除く): 42575580

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, 52561, 105122, 157683, 210244, 262805, 315366, 420488, 473049, 525610, 630732, 788415, 946098, 1051220, 1261464, 1576830, 1892196, 2102440, 2365245, 3153660, 3784392, 4730490, 6307320, 9460980, 18921960]

約数ペア:

[(1, 18921960), (2, 9460980), (3, 6307320), (4, 4730490), (5, 3784392), (6, 3153660), (8, 2365245), (9, 2102440), (10, 1892196), (12, 1576830), (15, 1261464), (18, 1051220), (20, 946098), (24, 788415), (30, 630732), (36, 525610), (40, 473049), (45, 420488), (60, 315366), (72, 262805), (90, 210244), (120, 157683), (180, 105122), (360, 52561)]