128744912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{423503}}^1$

素因数の和:423530

約数の個数: 20

約数和(自身を含む): 262572480

約数和(自身を除く): 133827568

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 423503, 847006, 1694012, 3388024, 6776048, 8046557, 16093114, 32186228, 64372456, 128744912]

約数ペア:

[(1, 128744912), (2, 64372456), (4, 32186228), (8, 16093114), (16, 8046557), (19, 6776048), (38, 3388024), (76, 1694012), (152, 847006), (304, 423503)]