80748620

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 173365920

約数和(自身を除く): 92617300

約数列:

[1, 2, 4, 5, 10, 20, 97, 107, 194, 214, 388, 389, 428, 485, 535, 778, 970, 1070, 1556, 1940, 1945, 2140, 3890, 7780, 10379, 20758, 37733, 41516, 41623, 51895, 75466, 83246, 103790, 150932, 166492, 188665, 207580, 208115, 377330, 416230, 754660, 832460, 4037431, 8074862, 16149724, 20187155, 40374310, 80748620]

約数ペア:

[(1, 80748620), (2, 40374310), (4, 20187155), (5, 16149724), (10, 8074862), (20, 4037431), (97, 832460), (107, 754660), (194, 416230), (214, 377330), (388, 208115), (389, 207580), (428, 188665), (485, 166492), (535, 150932), (778, 103790), (970, 83246), (1070, 75466), (1556, 51895), (1940, 41623), (1945, 41516), (2140, 37733), (3890, 20758), (7780, 10379)]