19757872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:761

約数の個数: 40

約数和(自身を含む): 40751360

約数和(自身を除く): 20993488

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 152, 206, 304, 412, 631, 824, 1262, 1648, 1957, 2524, 3914, 5048, 7828, 10096, 11989, 15656, 23978, 31312, 47956, 64993, 95912, 129986, 191824, 259972, 519944, 1039888, 1234867, 2469734, 4939468, 9878936, 19757872]

約数ペア:

[(1, 19757872), (2, 9878936), (4, 4939468), (8, 2469734), (16, 1234867), (19, 1039888), (38, 519944), (76, 259972), (103, 191824), (152, 129986), (206, 95912), (304, 64993), (412, 47956), (631, 31312), (824, 23978), (1262, 15656), (1648, 11989), (1957, 10096), (2524, 7828), (3914, 5048)]