639567938

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{59539}}^1$

素因数の和:59713

約数の個数: 16

約数和(自身を含む): 990269280

約数和(自身を除く): 350701342

約数列:

[1, 2, 41, 82, 131, 262, 5371, 10742, 59539, 119078, 2441099, 4882198, 7799609, 15599218, 319783969, 639567938]

約数ペア:

[(1, 639567938), (2, 319783969), (41, 15599218), (82, 7799609), (131, 4882198), (262, 2441099), (5371, 119078), (10742, 59539)]