20901960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58061}}^1$

素因数の和:58078

約数の個数: 48

約数和(自身を含む): 67932540

約数和(自身を除く): 47030580

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, 58061, 116122, 174183, 232244, 290305, 348366, 464488, 522549, 580610, 696732, 870915, 1045098, 1161220, 1393464, 1741830, 2090196, 2322440, 2612745, 3483660, 4180392, 5225490, 6967320, 10450980, 20901960]

約数ペア:

[(1, 20901960), (2, 10450980), (3, 6967320), (4, 5225490), (5, 4180392), (6, 3483660), (8, 2612745), (9, 2322440), (10, 2090196), (12, 1741830), (15, 1393464), (18, 1161220), (20, 1045098), (24, 870915), (30, 696732), (36, 580610), (40, 522549), (45, 464488), (60, 348366), (72, 290305), (90, 232244), (120, 174183), (180, 116122), (360, 58061)]