123147664

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{405091}}^1$

素因数の和:405118

約数の個数: 20

約数和(自身を含む): 251157040

約数和(自身を除く): 128009376

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 405091, 810182, 1620364, 3240728, 6481456, 7696729, 15393458, 30786916, 61573832, 123147664]

約数ペア:

[(1, 123147664), (2, 61573832), (4, 30786916), (8, 15393458), (16, 7696729), (19, 6481456), (38, 3240728), (76, 1620364), (152, 810182), (304, 405091)]