20193843472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{640993}}^1$

素因数の和:641191

約数の個数: 40

約数和(自身を含む): 42920958240

約数和(自身を除く): 22727114768

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 179, 358, 716, 1432, 1969, 2864, 3938, 7876, 15752, 31504, 640993, 1281986, 2563972, 5127944, 7050923, 10255888, 14101846, 28203692, 56407384, 112814768, 114737747, 229475494, 458950988, 917901976, 1262115217, 1835803952, 2524230434, 5048460868, 10096921736, 20193843472]

約数ペア:

[(1, 20193843472), (2, 10096921736), (4, 5048460868), (8, 2524230434), (11, 1835803952), (16, 1262115217), (22, 917901976), (44, 458950988), (88, 229475494), (176, 114737747), (179, 112814768), (358, 56407384), (716, 28203692), (1432, 14101846), (1969, 10255888), (2864, 7050923), (3938, 5127944), (7876, 2563972), (15752, 1281986), (31504, 640993)]