7271980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 16240896

約数和(自身を除く): 8968916

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 317, 370, 620, 634, 740, 1147, 1268, 1585, 2294, 3170, 4588, 5735, 6340, 9827, 11470, 11729, 19654, 22940, 23458, 39308, 46916, 49135, 58645, 98270, 117290, 196540, 234580, 363599, 727198, 1454396, 1817995, 3635990, 7271980]

約数ペア:

[(1, 7271980), (2, 3635990), (4, 1817995), (5, 1454396), (10, 727198), (20, 363599), (31, 234580), (37, 196540), (62, 117290), (74, 98270), (124, 58645), (148, 49135), (155, 46916), (185, 39308), (310, 23458), (317, 22940), (370, 19654), (620, 11729), (634, 11470), (740, 9827), (1147, 6340), (1268, 5735), (1585, 4588), (2294, 3170)]