20479610

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 38187072

約数和(自身を除く): 17707462

約数列:

[1, 2, 5, 10, 43, 86, 97, 194, 215, 430, 485, 491, 970, 982, 2455, 4171, 4910, 8342, 20855, 21113, 41710, 42226, 47627, 95254, 105565, 211130, 238135, 476270, 2047961, 4095922, 10239805, 20479610]

約数ペア:

[(1, 20479610), (2, 10239805), (5, 4095922), (10, 2047961), (43, 476270), (86, 238135), (97, 211130), (194, 105565), (215, 95254), (430, 47627), (485, 42226), (491, 41710), (970, 21113), (982, 20855), (2455, 8342), (4171, 4910)]