19747560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23509}}^1$

素因数の和:23530

約数の個数: 64

約数和(自身を含む): 67708800

約数和(自身を除く): 47961240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23509, 47018, 70527, 94036, 117545, 141054, 164563, 188072, 235090, 282108, 329126, 352635, 470180, 493689, 564216, 658252, 705270, 822815, 940360, 987378, 1316504, 1410540, 1645630, 1974756, 2468445, 2821080, 3291260, 3949512, 4936890, 6582520, 9873780, 19747560]

約数ペア:

[(1, 19747560), (2, 9873780), (3, 6582520), (4, 4936890), (5, 3949512), (6, 3291260), (7, 2821080), (8, 2468445), (10, 1974756), (12, 1645630), (14, 1410540), (15, 1316504), (20, 987378), (21, 940360), (24, 822815), (28, 705270), (30, 658252), (35, 564216), (40, 493689), (42, 470180), (56, 352635), (60, 329126), (70, 282108), (84, 235090), (105, 188072), (120, 164563), (140, 141054), (168, 117545), (210, 94036), (280, 70527), (420, 47018), (840, 23509)]