321765920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{287291}}^1$

素因数の和:287313

約数の個数: 48

約数和(自身を含む): 868771008

約数和(自身を除く): 547005088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 287291, 574582, 1149164, 1436455, 2011037, 2298328, 2872910, 4022074, 4596656, 5745820, 8044148, 9193312, 10055185, 11491640, 16088296, 20110370, 22983280, 32176592, 40220740, 45966560, 64353184, 80441480, 160882960, 321765920]

約数ペア:

[(1, 321765920), (2, 160882960), (4, 80441480), (5, 64353184), (7, 45966560), (8, 40220740), (10, 32176592), (14, 22983280), (16, 20110370), (20, 16088296), (28, 11491640), (32, 10055185), (35, 9193312), (40, 8044148), (56, 5745820), (70, 4596656), (80, 4022074), (112, 2872910), (140, 2298328), (160, 2011037), (224, 1436455), (280, 1149164), (560, 574582), (1120, 287291)]