19554920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{907}}^1$

素因数の和:943

約数の個数: 96

約数和(自身を含む): 55896480

約数和(自身を除く): 36341560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 616, 770, 907, 980, 1078, 1540, 1814, 1960, 2156, 2695, 3080, 3628, 4312, 4535, 5390, 6349, 7256, 9070, 9977, 10780, 12698, 18140, 19954, 21560, 25396, 31745, 36280, 39908, 44443, 49885, 50792, 63490, 69839, 79816, 88886, 99770, 126980, 139678, 177772, 199540, 222215, 253960, 279356, 349195, 355544, 399080, 444430, 488873, 558712, 698390, 888860, 977746, 1396780, 1777720, 1955492, 2444365, 2793560, 3910984, 4888730, 9777460, 19554920]

約数ペア:

[(1, 19554920), (2, 9777460), (4, 4888730), (5, 3910984), (7, 2793560), (8, 2444365), (10, 1955492), (11, 1777720), (14, 1396780), (20, 977746), (22, 888860), (28, 698390), (35, 558712), (40, 488873), (44, 444430), (49, 399080), (55, 355544), (56, 349195), (70, 279356), (77, 253960), (88, 222215), (98, 199540), (110, 177772), (140, 139678), (154, 126980), (196, 99770), (220, 88886), (245, 79816), (280, 69839), (308, 63490), (385, 50792), (392, 49885), (440, 44443), (490, 39908), (539, 36280), (616, 31745), (770, 25396), (907, 21560), (980, 19954), (1078, 18140), (1540, 12698), (1814, 10780), (1960, 9977), (2156, 9070), (2695, 7256), (3080, 6349), (3628, 5390), (4312, 4535)]