990356

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 24

約数和(自身を含む): 1858080

約数和(自身を除く): 867724

約数列:

[1, 2, 4, 19, 38, 76, 83, 157, 166, 314, 332, 628, 1577, 2983, 3154, 5966, 6308, 11932, 13031, 26062, 52124, 247589, 495178, 990356]

約数ペア:

[(1, 990356), (2, 495178), (4, 247589), (19, 52124), (38, 26062), (76, 13031), (83, 11932), (157, 6308), (166, 5966), (314, 3154), (332, 2983), (628, 1577)]