123395120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{81181}}^1$

素因数の和:81213

約数の個数: 40

約数和(自身を含む): 301997040

約数和(自身を除く): 178601920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 81181, 162362, 324724, 405905, 649448, 811810, 1298896, 1542439, 1623620, 3084878, 3247240, 6169756, 6494480, 7712195, 12339512, 15424390, 24679024, 30848780, 61697560, 123395120]

約数ペア:

[(1, 123395120), (2, 61697560), (4, 30848780), (5, 24679024), (8, 15424390), (10, 12339512), (16, 7712195), (19, 6494480), (20, 6169756), (38, 3247240), (40, 3084878), (76, 1623620), (80, 1542439), (95, 1298896), (152, 811810), (190, 649448), (304, 405905), (380, 324724), (760, 162362), (1520, 81181)]