20461320800

素因数分解:

$2^5\times 5^2\times {\mathrm{103}}^1\times {\mathrm{248317}}^1$

素因数の和:248440

約数の個数: 72

約数和(自身を含む): 50436365616

約数和(自身を除く): 29975044816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 103, 160, 200, 206, 400, 412, 515, 800, 824, 1030, 1648, 2060, 2575, 3296, 4120, 5150, 8240, 10300, 16480, 20600, 41200, 82400, 248317, 496634, 993268, 1241585, 1986536, 2483170, 3973072, 4966340, 6207925, 7946144, 9932680, 12415850, 19865360, 24831700, 25576651, 39730720, 49663400, 51153302, 99326800, 102306604, 127883255, 198653600, 204613208, 255766510, 409226416, 511533020, 639416275, 818452832, 1023066040, 1278832550, 2046132080, 2557665100, 4092264160, 5115330200, 10230660400, 20461320800]

約数ペア:

[(1, 20461320800), (2, 10230660400), (4, 5115330200), (5, 4092264160), (8, 2557665100), (10, 2046132080), (16, 1278832550), (20, 1023066040), (25, 818452832), (32, 639416275), (40, 511533020), (50, 409226416), (80, 255766510), (100, 204613208), (103, 198653600), (160, 127883255), (200, 102306604), (206, 99326800), (400, 51153302), (412, 49663400), (515, 39730720), (800, 25576651), (824, 24831700), (1030, 19865360), (1648, 12415850), (2060, 9932680), (2575, 7946144), (3296, 6207925), (4120, 4966340), (5150, 3973072), (8240, 2483170), (10300, 1986536), (16480, 1241585), (20600, 993268), (41200, 496634), (82400, 248317)]