68403620

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 147329280

約数和(自身を除く): 78925660

約数列:

[1, 2, 4, 5, 10, 20, 83, 89, 166, 178, 332, 356, 415, 445, 463, 830, 890, 926, 1660, 1780, 1852, 2315, 4630, 7387, 9260, 14774, 29548, 36935, 38429, 41207, 73870, 76858, 82414, 147740, 153716, 164828, 192145, 206035, 384290, 412070, 768580, 824140, 3420181, 6840362, 13680724, 17100905, 34201810, 68403620]

約数ペア:

[(1, 68403620), (2, 34201810), (4, 17100905), (5, 13680724), (10, 6840362), (20, 3420181), (83, 824140), (89, 768580), (166, 412070), (178, 384290), (332, 206035), (356, 192145), (415, 164828), (445, 153716), (463, 147740), (830, 82414), (890, 76858), (926, 73870), (1660, 41207), (1780, 38429), (1852, 36935), (2315, 29548), (4630, 14774), (7387, 9260)]