338623640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{1303}}^1$

素因数の和:1476

約数の個数: 64

約数和(自身を含む): 781617600

約数和(自身を除く): 442993960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 89, 146, 178, 292, 356, 365, 445, 584, 712, 730, 890, 1303, 1460, 1780, 2606, 2920, 3560, 5212, 6497, 6515, 10424, 12994, 13030, 25988, 26060, 32485, 51976, 52120, 64970, 95119, 115967, 129940, 190238, 231934, 259880, 380476, 463868, 475595, 579835, 760952, 927736, 951190, 1159670, 1902380, 2319340, 3804760, 4638680, 8465591, 16931182, 33862364, 42327955, 67724728, 84655910, 169311820, 338623640]

約数ペア:

[(1, 338623640), (2, 169311820), (4, 84655910), (5, 67724728), (8, 42327955), (10, 33862364), (20, 16931182), (40, 8465591), (73, 4638680), (89, 3804760), (146, 2319340), (178, 1902380), (292, 1159670), (356, 951190), (365, 927736), (445, 760952), (584, 579835), (712, 475595), (730, 463868), (890, 380476), (1303, 259880), (1460, 231934), (1780, 190238), (2606, 129940), (2920, 115967), (3560, 95119), (5212, 64970), (6497, 52120), (6515, 51976), (10424, 32485), (12994, 26060), (13030, 25988)]