138215728

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{64951}}^1$

素因数の和:64985

約数の個数: 40

約数和(自身を含む): 322161920

約数和(自身を除く): 183946192

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 64951, 129902, 259804, 454657, 519608, 909314, 1039216, 1234069, 1818628, 2468138, 3637256, 4936276, 7274512, 8638483, 9872552, 17276966, 19745104, 34553932, 69107864, 138215728]

約数ペア:

[(1, 138215728), (2, 69107864), (4, 34553932), (7, 19745104), (8, 17276966), (14, 9872552), (16, 8638483), (19, 7274512), (28, 4936276), (38, 3637256), (56, 2468138), (76, 1818628), (112, 1234069), (133, 1039216), (152, 909314), (266, 519608), (304, 454657), (532, 259804), (1064, 129902), (2128, 64951)]