28791210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1931}}^1$

素因数の和:2019

約数の個数: 64

約数和(自身を含む): 80123904

約数和(自身を除く): 51332694

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 71, 105, 142, 210, 213, 355, 426, 497, 710, 994, 1065, 1491, 1931, 2130, 2485, 2982, 3862, 4970, 5793, 7455, 9655, 11586, 13517, 14910, 19310, 27034, 28965, 40551, 57930, 67585, 81102, 135170, 137101, 202755, 274202, 405510, 411303, 685505, 822606, 959707, 1371010, 1919414, 2056515, 2879121, 4113030, 4798535, 5758242, 9597070, 14395605, 28791210]

約数ペア:

[(1, 28791210), (2, 14395605), (3, 9597070), (5, 5758242), (6, 4798535), (7, 4113030), (10, 2879121), (14, 2056515), (15, 1919414), (21, 1371010), (30, 959707), (35, 822606), (42, 685505), (70, 411303), (71, 405510), (105, 274202), (142, 202755), (210, 137101), (213, 135170), (355, 81102), (426, 67585), (497, 57930), (710, 40551), (994, 28965), (1065, 27034), (1491, 19310), (1931, 14910), (2130, 13517), (2485, 11586), (2982, 9655), (3862, 7455), (4970, 5793)]