128316565580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{867121}}^1$

素因数の和:867295

約数の個数: 72

約数和(自身を含む): 315535290336

約数和(自身を除く): 187218724756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 151, 196, 245, 302, 490, 604, 755, 980, 1057, 1510, 2114, 3020, 4228, 5285, 7399, 10570, 14798, 21140, 29596, 36995, 73990, 147980, 867121, 1734242, 3468484, 4335605, 6069847, 8671210, 12139694, 17342420, 24279388, 30349235, 42488929, 60698470, 84977858, 121396940, 130935271, 169955716, 212444645, 261870542, 424889290, 523741084, 654676355, 849778580, 916546897, 1309352710, 1833093794, 2618705420, 3666187588, 4582734485, 6415828279, 9165468970, 12831656558, 18330937940, 25663313116, 32079141395, 64158282790, 128316565580]

約数ペア:

[(1, 128316565580), (2, 64158282790), (4, 32079141395), (5, 25663313116), (7, 18330937940), (10, 12831656558), (14, 9165468970), (20, 6415828279), (28, 4582734485), (35, 3666187588), (49, 2618705420), (70, 1833093794), (98, 1309352710), (140, 916546897), (151, 849778580), (196, 654676355), (245, 523741084), (302, 424889290), (490, 261870542), (604, 212444645), (755, 169955716), (980, 130935271), (1057, 121396940), (1510, 84977858), (2114, 60698470), (3020, 42488929), (4228, 30349235), (5285, 24279388), (7399, 17342420), (10570, 12139694), (14798, 8671210), (21140, 6069847), (29596, 4335605), (36995, 3468484), (73990, 1734242), (147980, 867121)]