19890690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2521}}^1$

素因数の和:2794

約数の個数: 32

約数和(自身を含む): 47938176

約数和(自身を除く): 28047486

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 263, 526, 789, 1315, 1578, 2521, 2630, 3945, 5042, 7563, 7890, 12605, 15126, 25210, 37815, 75630, 663023, 1326046, 1989069, 3315115, 3978138, 6630230, 9945345, 19890690]

約数ペア:

[(1, 19890690), (2, 9945345), (3, 6630230), (5, 3978138), (6, 3315115), (10, 1989069), (15, 1326046), (30, 663023), (263, 75630), (526, 37815), (789, 25210), (1315, 15126), (1578, 12605), (2521, 7890), (2630, 7563), (3945, 5042)]