20668920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4201}}^1$

素因数の和:4256

約数の個数: 64

約数和(自身を含む): 63534240

約数和(自身を除く): 42865320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4201, 4920, 8402, 12603, 16804, 21005, 25206, 33608, 42010, 50412, 63015, 84020, 100824, 126030, 168040, 172241, 252060, 344482, 504120, 516723, 688964, 861205, 1033446, 1377928, 1722410, 2066892, 2583615, 3444820, 4133784, 5167230, 6889640, 10334460, 20668920]

約数ペア:

[(1, 20668920), (2, 10334460), (3, 6889640), (4, 5167230), (5, 4133784), (6, 3444820), (8, 2583615), (10, 2066892), (12, 1722410), (15, 1377928), (20, 1033446), (24, 861205), (30, 688964), (40, 516723), (41, 504120), (60, 344482), (82, 252060), (120, 172241), (123, 168040), (164, 126030), (205, 100824), (246, 84020), (328, 63015), (410, 50412), (492, 42010), (615, 33608), (820, 25206), (984, 21005), (1230, 16804), (1640, 12603), (2460, 8402), (4201, 4920)]