20799376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{277}}^1$

素因数の和:336

約数の個数: 60

約数和(自身を含む): 45968412

約数和(自身を除く): 25169036

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 277, 304, 361, 494, 554, 722, 988, 1108, 1444, 1976, 2216, 2888, 3601, 3952, 4432, 4693, 5263, 5776, 7202, 9386, 10526, 14404, 18772, 21052, 28808, 37544, 42104, 57616, 68419, 75088, 84208, 99997, 136838, 199994, 273676, 399988, 547352, 799976, 1094704, 1299961, 1599952, 2599922, 5199844, 10399688, 20799376]

約数ペア:

[(1, 20799376), (2, 10399688), (4, 5199844), (8, 2599922), (13, 1599952), (16, 1299961), (19, 1094704), (26, 799976), (38, 547352), (52, 399988), (76, 273676), (104, 199994), (152, 136838), (208, 99997), (247, 84208), (277, 75088), (304, 68419), (361, 57616), (494, 42104), (554, 37544), (722, 28808), (988, 21052), (1108, 18772), (1444, 14404), (1976, 10526), (2216, 9386), (2888, 7202), (3601, 5776), (3952, 5263), (4432, 4693)]