20667708

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 55255200

約数和(自身を除く): 34587492

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 109, 138, 207, 218, 229, 276, 327, 414, 436, 458, 654, 687, 828, 916, 981, 1308, 1374, 1962, 2061, 2507, 2748, 3924, 4122, 5014, 5267, 7521, 8244, 10028, 10534, 15042, 15801, 21068, 22563, 24961, 30084, 31602, 45126, 47403, 49922, 63204, 74883, 90252, 94806, 99844, 149766, 189612, 224649, 299532, 449298, 574103, 898596, 1148206, 1722309, 2296412, 3444618, 5166927, 6889236, 10333854, 20667708]

約数ペア:

[(1, 20667708), (2, 10333854), (3, 6889236), (4, 5166927), (6, 3444618), (9, 2296412), (12, 1722309), (18, 1148206), (23, 898596), (36, 574103), (46, 449298), (69, 299532), (92, 224649), (109, 189612), (138, 149766), (207, 99844), (218, 94806), (229, 90252), (276, 74883), (327, 63204), (414, 49922), (436, 47403), (458, 45126), (654, 31602), (687, 30084), (828, 24961), (916, 22563), (981, 21068), (1308, 15801), (1374, 15042), (1962, 10534), (2061, 10028), (2507, 8244), (2748, 7521), (3924, 5267), (4122, 5014)]