1330883720

素因数分解:

$2^3\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{19333}}^1$

素因数の和:21065

約数の個数: 32

約数和(自身を含む): 2996383320

約数和(自身を除く): 1665499600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1721, 3442, 6884, 8605, 13768, 17210, 19333, 34420, 38666, 68840, 77332, 96665, 154664, 193330, 386660, 773320, 33272093, 66544186, 133088372, 166360465, 266176744, 332720930, 665441860, 1330883720]

約数ペア:

[(1, 1330883720), (2, 665441860), (4, 332720930), (5, 266176744), (8, 166360465), (10, 133088372), (20, 66544186), (40, 33272093), (1721, 773320), (3442, 386660), (6884, 193330), (8605, 154664), (13768, 96665), (17210, 77332), (19333, 68840), (34420, 38666)]