38898440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{138923}}^1$

素因数の和:138941

約数の個数: 32

約数和(自身を含む): 100025280

約数和(自身を除く): 61126840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 138923, 277846, 555692, 694615, 972461, 1111384, 1389230, 1944922, 2778460, 3889844, 4862305, 5556920, 7779688, 9724610, 19449220, 38898440]

約数ペア:

[(1, 38898440), (2, 19449220), (4, 9724610), (5, 7779688), (7, 5556920), (8, 4862305), (10, 3889844), (14, 2778460), (20, 1944922), (28, 1389230), (35, 1111384), (40, 972461), (56, 694615), (70, 555692), (140, 277846), (280, 138923)]