15660470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 34338816

約数和(自身を除く): 18678346

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 71, 115, 137, 142, 161, 230, 274, 322, 355, 497, 685, 710, 805, 959, 994, 1370, 1610, 1633, 1918, 2485, 3151, 3266, 4795, 4970, 6302, 8165, 9590, 9727, 11431, 15755, 16330, 19454, 22057, 22862, 31510, 44114, 48635, 57155, 68089, 97270, 110285, 114310, 136178, 220570, 223721, 340445, 447442, 680890, 1118605, 1566047, 2237210, 3132094, 7830235, 15660470]

約数ペア:

[(1, 15660470), (2, 7830235), (5, 3132094), (7, 2237210), (10, 1566047), (14, 1118605), (23, 680890), (35, 447442), (46, 340445), (70, 223721), (71, 220570), (115, 136178), (137, 114310), (142, 110285), (161, 97270), (230, 68089), (274, 57155), (322, 48635), (355, 44114), (497, 31510), (685, 22862), (710, 22057), (805, 19454), (959, 16330), (994, 15755), (1370, 11431), (1610, 9727), (1633, 9590), (1918, 8165), (2485, 6302), (3151, 4970), (3266, 4795)]