19830120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{643}}^1$

素因数の和:914

約数の個数: 64

約数和(自身を含む): 59814720

約数和(自身を除く): 39984600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 643, 771, 1028, 1285, 1286, 1542, 1929, 2056, 2570, 2572, 3084, 3215, 3855, 3858, 5140, 5144, 6168, 6430, 7710, 7716, 9645, 10280, 12860, 15420, 15432, 19290, 25720, 30840, 38580, 77160, 165251, 330502, 495753, 661004, 826255, 991506, 1322008, 1652510, 1983012, 2478765, 3305020, 3966024, 4957530, 6610040, 9915060, 19830120]

約数ペア:

[(1, 19830120), (2, 9915060), (3, 6610040), (4, 4957530), (5, 3966024), (6, 3305020), (8, 2478765), (10, 1983012), (12, 1652510), (15, 1322008), (20, 991506), (24, 826255), (30, 661004), (40, 495753), (60, 330502), (120, 165251), (257, 77160), (514, 38580), (643, 30840), (771, 25720), (1028, 19290), (1285, 15432), (1286, 15420), (1542, 12860), (1929, 10280), (2056, 9645), (2570, 7716), (2572, 7710), (3084, 6430), (3215, 6168), (3855, 5144), (3858, 5140)]