21996061600

素因数分解:

$2^5\times 5^2\times {\mathrm{2777}}^1\times {\mathrm{9901}}^1$

素因数の和:12698

約数の個数: 72

約数和(自身を含む): 53722647468

約数和(自身を除く): 31726585868

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 2777, 5554, 9901, 11108, 13885, 19802, 22216, 27770, 39604, 44432, 49505, 55540, 69425, 79208, 88864, 99010, 111080, 138850, 158416, 198020, 222160, 247525, 277700, 316832, 396040, 444320, 495050, 555400, 792080, 990100, 1110800, 1584160, 1980200, 2221600, 3960400, 7920800, 27495077, 54990154, 109980308, 137475385, 219960616, 274950770, 439921232, 549901540, 687376925, 879842464, 1099803080, 1374753850, 2199606160, 2749507700, 4399212320, 5499015400, 10998030800, 21996061600]

約数ペア:

[(1, 21996061600), (2, 10998030800), (4, 5499015400), (5, 4399212320), (8, 2749507700), (10, 2199606160), (16, 1374753850), (20, 1099803080), (25, 879842464), (32, 687376925), (40, 549901540), (50, 439921232), (80, 274950770), (100, 219960616), (160, 137475385), (200, 109980308), (400, 54990154), (800, 27495077), (2777, 7920800), (5554, 3960400), (9901, 2221600), (11108, 1980200), (13885, 1584160), (19802, 1110800), (22216, 990100), (27770, 792080), (39604, 555400), (44432, 495050), (49505, 444320), (55540, 396040), (69425, 316832), (79208, 277700), (88864, 247525), (99010, 222160), (111080, 198020), (138850, 158416)]