21181196800

素因数分解:

$2^9\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71947}}^1$

素因数の和:71998

約数の個数: 120

約数和(自身を含む): 54760486176

約数和(自身を除く): 33579289376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 128, 160, 184, 200, 230, 256, 320, 368, 400, 460, 512, 575, 640, 736, 800, 920, 1150, 1280, 1472, 1600, 1840, 2300, 2560, 2944, 3200, 3680, 4600, 5888, 6400, 7360, 9200, 11776, 12800, 14720, 18400, 29440, 36800, 58880, 71947, 73600, 143894, 147200, 287788, 294400, 359735, 575576, 719470, 1151152, 1438940, 1654781, 1798675, 2302304, 2877880, 3309562, 3597350, 4604608, 5755760, 6619124, 7194700, 8273905, 9209216, 11511520, 13238248, 14389400, 16547810, 18418432, 23023040, 26476496, 28778800, 33095620, 36836864, 41369525, 46046080, 52952992, 57557600, 66191240, 82739050, 92092160, 105905984, 115115200, 132382480, 165478100, 184184320, 211811968, 230230400, 264764960, 330956200, 423623936, 460460800, 529529920, 661912400, 847247872, 920921600, 1059059840, 1323824800, 2118119680, 2647649600, 4236239360, 5295299200, 10590598400, 21181196800]

約数ペア:

[(1, 21181196800), (2, 10590598400), (4, 5295299200), (5, 4236239360), (8, 2647649600), (10, 2118119680), (16, 1323824800), (20, 1059059840), (23, 920921600), (25, 847247872), (32, 661912400), (40, 529529920), (46, 460460800), (50, 423623936), (64, 330956200), (80, 264764960), (92, 230230400), (100, 211811968), (115, 184184320), (128, 165478100), (160, 132382480), (184, 115115200), (200, 105905984), (230, 92092160), (256, 82739050), (320, 66191240), (368, 57557600), (400, 52952992), (460, 46046080), (512, 41369525), (575, 36836864), (640, 33095620), (736, 28778800), (800, 26476496), (920, 23023040), (1150, 18418432), (1280, 16547810), (1472, 14389400), (1600, 13238248), (1840, 11511520), (2300, 9209216), (2560, 8273905), (2944, 7194700), (3200, 6619124), (3680, 5755760), (4600, 4604608), (5888, 3597350), (6400, 3309562), (7360, 2877880), (9200, 2302304), (11776, 1798675), (12800, 1654781), (14720, 1438940), (18400, 1151152), (29440, 719470), (36800, 575576), (58880, 359735), (71947, 294400), (73600, 287788), (143894, 147200)]