31354310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 32512570

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 71, 79, 86, 130, 142, 158, 215, 355, 395, 430, 559, 710, 790, 923, 1027, 1118, 1846, 2054, 2795, 3053, 3397, 4615, 5135, 5590, 5609, 6106, 6794, 9230, 10270, 11218, 15265, 16985, 28045, 30530, 33970, 39689, 44161, 56090, 72917, 79378, 88322, 145834, 198445, 220805, 241187, 364585, 396890, 441610, 482374, 729170, 1205935, 2411870, 3135431, 6270862, 15677155, 31354310]

約数ペア:

[(1, 31354310), (2, 15677155), (5, 6270862), (10, 3135431), (13, 2411870), (26, 1205935), (43, 729170), (65, 482374), (71, 441610), (79, 396890), (86, 364585), (130, 241187), (142, 220805), (158, 198445), (215, 145834), (355, 88322), (395, 79378), (430, 72917), (559, 56090), (710, 44161), (790, 39689), (923, 33970), (1027, 30530), (1118, 28045), (1846, 16985), (2054, 15265), (2795, 11218), (3053, 10270), (3397, 9230), (4615, 6794), (5135, 6106), (5590, 5609)]