20178032890

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{491}}^1\times {\mathrm{739}}^1$

素因数の和:1387

約数の個数: 64

約数和(自身を含む): 37433249280

約数和(自身を除く): 17255216390

約数列:

[1, 2, 5, 10, 67, 83, 134, 166, 335, 415, 491, 670, 739, 830, 982, 1478, 2455, 3695, 4910, 5561, 7390, 11122, 27805, 32897, 40753, 49513, 55610, 61337, 65794, 81506, 99026, 122674, 164485, 203765, 247565, 306685, 328970, 362849, 407530, 495130, 613370, 725698, 1814245, 2730451, 3628490, 4109579, 5460902, 8219158, 13652255, 20547895, 24310883, 27304510, 30116467, 41095790, 48621766, 60232934, 121554415, 150582335, 243108830, 301164670, 2017803289, 4035606578, 10089016445, 20178032890]

約数ペア:

[(1, 20178032890), (2, 10089016445), (5, 4035606578), (10, 2017803289), (67, 301164670), (83, 243108830), (134, 150582335), (166, 121554415), (335, 60232934), (415, 48621766), (491, 41095790), (670, 30116467), (739, 27304510), (830, 24310883), (982, 20547895), (1478, 13652255), (2455, 8219158), (3695, 5460902), (4910, 4109579), (5561, 3628490), (7390, 2730451), (11122, 1814245), (27805, 725698), (32897, 613370), (40753, 495130), (49513, 407530), (55610, 362849), (61337, 328970), (65794, 306685), (81506, 247565), (99026, 203765), (122674, 164485)]