2015009720

素因数分解:

$2^3\times 5^1\times {\mathrm{12841}}^1\times {\mathrm{3923}}^1$

素因数の和:16775

約数の個数: 32

約数和(自身を含む): 4535280720

約数和(自身を除く): 2520271000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3923, 7846, 12841, 15692, 19615, 25682, 31384, 39230, 51364, 64205, 78460, 102728, 128410, 156920, 256820, 513640, 50375243, 100750486, 201500972, 251876215, 403001944, 503752430, 1007504860, 2015009720]

約数ペア:

[(1, 2015009720), (2, 1007504860), (4, 503752430), (5, 403001944), (8, 251876215), (10, 201500972), (20, 100750486), (40, 50375243), (3923, 513640), (7846, 256820), (12841, 156920), (15692, 128410), (19615, 102728), (25682, 78460), (31384, 64205), (39230, 51364)]