20455560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56821}}^1$

素因数の和:56838

約数の個数: 48

約数和(自身を含む): 66481740

約数和(自身を除く): 46026180

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, 56821, 113642, 170463, 227284, 284105, 340926, 454568, 511389, 568210, 681852, 852315, 1022778, 1136420, 1363704, 1704630, 2045556, 2272840, 2556945, 3409260, 4091112, 5113890, 6818520, 10227780, 20455560]

約数ペア:

[(1, 20455560), (2, 10227780), (3, 6818520), (4, 5113890), (5, 4091112), (6, 3409260), (8, 2556945), (9, 2272840), (10, 2045556), (12, 1704630), (15, 1363704), (18, 1136420), (20, 1022778), (24, 852315), (30, 681852), (36, 568210), (40, 511389), (45, 454568), (60, 340926), (72, 284105), (90, 227284), (120, 170463), (180, 113642), (360, 56821)]