20011964

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 41395200

約数和(自身を除く): 21383236

約数列:

[1, 2, 4, 7, 14, 28, 79, 83, 109, 158, 166, 218, 316, 332, 436, 553, 581, 763, 1106, 1162, 1526, 2212, 2324, 3052, 6557, 8611, 9047, 13114, 17222, 18094, 26228, 34444, 36188, 45899, 60277, 63329, 91798, 120554, 126658, 183596, 241108, 253316, 714713, 1429426, 2858852, 5002991, 10005982, 20011964]

約数ペア:

[(1, 20011964), (2, 10005982), (4, 5002991), (7, 2858852), (14, 1429426), (28, 714713), (79, 253316), (83, 241108), (109, 183596), (158, 126658), (166, 120554), (218, 91798), (316, 63329), (332, 60277), (436, 45899), (553, 36188), (581, 34444), (763, 26228), (1106, 18094), (1162, 17222), (1526, 13114), (2212, 9047), (2324, 8611), (3052, 6557)]