20785376

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:975

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 23340832

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 92, 124, 184, 248, 368, 496, 713, 736, 911, 992, 1426, 1822, 2852, 3644, 5704, 7288, 11408, 14576, 20953, 22816, 28241, 29152, 41906, 56482, 83812, 112964, 167624, 225928, 335248, 451856, 649543, 670496, 903712, 1299086, 2598172, 5196344, 10392688, 20785376]

約数ペア:

[(1, 20785376), (2, 10392688), (4, 5196344), (8, 2598172), (16, 1299086), (23, 903712), (31, 670496), (32, 649543), (46, 451856), (62, 335248), (92, 225928), (124, 167624), (184, 112964), (248, 83812), (368, 56482), (496, 41906), (713, 29152), (736, 28241), (911, 22816), (992, 20953), (1426, 14576), (1822, 11408), (2852, 7288), (3644, 5704)]