489743860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{3769}}^1$

素因数の和:3940

約数の個数: 48

約数和(自身を含む): 1054544400

約数和(自身を除く): 564800540

約数列:

[1, 2, 4, 5, 10, 20, 73, 89, 146, 178, 292, 356, 365, 445, 730, 890, 1460, 1780, 3769, 6497, 7538, 12994, 15076, 18845, 25988, 32485, 37690, 64970, 75380, 129940, 275137, 335441, 550274, 670882, 1100548, 1341764, 1375685, 1677205, 2751370, 3354410, 5502740, 6708820, 24487193, 48974386, 97948772, 122435965, 244871930, 489743860]

約数ペア:

[(1, 489743860), (2, 244871930), (4, 122435965), (5, 97948772), (10, 48974386), (20, 24487193), (73, 6708820), (89, 5502740), (146, 3354410), (178, 2751370), (292, 1677205), (356, 1375685), (365, 1341764), (445, 1100548), (730, 670882), (890, 550274), (1460, 335441), (1780, 275137), (3769, 129940), (6497, 75380), (7538, 64970), (12994, 37690), (15076, 32485), (18845, 25988)]