19900680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{383}}^1\times {\mathrm{433}}^1$

素因数の和:830

約数の個数: 64

約数和(自身を含む): 59996160

約数和(自身を除く): 40095480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 383, 433, 766, 866, 1149, 1299, 1532, 1732, 1915, 2165, 2298, 2598, 3064, 3464, 3830, 4330, 4596, 5196, 5745, 6495, 7660, 8660, 9192, 10392, 11490, 12990, 15320, 17320, 22980, 25980, 45960, 51960, 165839, 331678, 497517, 663356, 829195, 995034, 1326712, 1658390, 1990068, 2487585, 3316780, 3980136, 4975170, 6633560, 9950340, 19900680]

約数ペア:

[(1, 19900680), (2, 9950340), (3, 6633560), (4, 4975170), (5, 3980136), (6, 3316780), (8, 2487585), (10, 1990068), (12, 1658390), (15, 1326712), (20, 995034), (24, 829195), (30, 663356), (40, 497517), (60, 331678), (120, 165839), (383, 51960), (433, 45960), (766, 25980), (866, 22980), (1149, 17320), (1299, 15320), (1532, 12990), (1732, 11490), (1915, 10392), (2165, 9192), (2298, 8660), (2598, 7660), (3064, 6495), (3464, 5745), (3830, 5196), (4330, 4596)]