66335260

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 142884000

約数和(自身を除く): 76548740

約数列:

[1, 2, 4, 5, 10, 20, 83, 89, 166, 178, 332, 356, 415, 445, 449, 830, 890, 898, 1660, 1780, 1796, 2245, 4490, 7387, 8980, 14774, 29548, 36935, 37267, 39961, 73870, 74534, 79922, 147740, 149068, 159844, 186335, 199805, 372670, 399610, 745340, 799220, 3316763, 6633526, 13267052, 16583815, 33167630, 66335260]

約数ペア:

[(1, 66335260), (2, 33167630), (4, 16583815), (5, 13267052), (10, 6633526), (20, 3316763), (83, 799220), (89, 745340), (166, 399610), (178, 372670), (332, 199805), (356, 186335), (415, 159844), (445, 149068), (449, 147740), (830, 79922), (890, 74534), (898, 73870), (1660, 39961), (1780, 37267), (1796, 36935), (2245, 29548), (4490, 14774), (7387, 8980)]