77638640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18311}}^1$

素因数の和:18377

約数の個数: 40

約数和(自身を含む): 183925728

約数和(自身を除く): 106287088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 18311, 36622, 73244, 91555, 146488, 183110, 292976, 366220, 732440, 970483, 1464880, 1940966, 3881932, 4852415, 7763864, 9704830, 15527728, 19409660, 38819320, 77638640]

約数ペア:

[(1, 77638640), (2, 38819320), (4, 19409660), (5, 15527728), (8, 9704830), (10, 7763864), (16, 4852415), (20, 3881932), (40, 1940966), (53, 1464880), (80, 970483), (106, 732440), (212, 366220), (265, 292976), (424, 183110), (530, 146488), (848, 91555), (1060, 73244), (2120, 36622), (4240, 18311)]