20805543366

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{42457}}^1$

素因数の和:42605

約数の個数: 64

約数和(自身を含む): 44900863488

約数和(自身を除く): 24095320122

約数列:

[1, 2, 3, 6, 23, 46, 53, 67, 69, 106, 134, 138, 159, 201, 318, 402, 1219, 1541, 2438, 3082, 3551, 3657, 4623, 7102, 7314, 9246, 10653, 21306, 42457, 81673, 84914, 127371, 163346, 245019, 254742, 490038, 976511, 1953022, 2250221, 2844619, 2929533, 4500442, 5689238, 5859066, 6750663, 8533857, 13501326, 17067714, 51755083, 65426237, 103510166, 130852474, 150764807, 155265249, 196278711, 301529614, 310530498, 392557422, 452294421, 904588842, 3467590561, 6935181122, 10402771683, 20805543366]

約数ペア:

[(1, 20805543366), (2, 10402771683), (3, 6935181122), (6, 3467590561), (23, 904588842), (46, 452294421), (53, 392557422), (67, 310530498), (69, 301529614), (106, 196278711), (134, 155265249), (138, 150764807), (159, 130852474), (201, 103510166), (318, 65426237), (402, 51755083), (1219, 17067714), (1541, 13501326), (2438, 8533857), (3082, 6750663), (3551, 5859066), (3657, 5689238), (4623, 4500442), (7102, 2929533), (7314, 2844619), (9246, 2250221), (10653, 1953022), (21306, 976511), (42457, 490038), (81673, 254742), (84914, 245019), (127371, 163346)]