7131421780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2237}}^1\times {\mathrm{3253}}^1$

素因数の和:5513

約数の個数: 72

約数和(自身を含む): 17434190088

約数和(自身を除く): 10302768308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2237, 3253, 4474, 6506, 8948, 11185, 13012, 15659, 16265, 22370, 22771, 31318, 32530, 44740, 45542, 62636, 65060, 78295, 91084, 109613, 113855, 156590, 159397, 219226, 227710, 313180, 318794, 438452, 455420, 548065, 637588, 796985, 1096130, 1593970, 2192260, 3187940, 7276961, 14553922, 29107844, 36384805, 50938727, 72769610, 101877454, 145539220, 203754908, 254693635, 356571089, 509387270, 713142178, 1018774540, 1426284356, 1782855445, 3565710890, 7131421780]

約数ペア:

[(1, 7131421780), (2, 3565710890), (4, 1782855445), (5, 1426284356), (7, 1018774540), (10, 713142178), (14, 509387270), (20, 356571089), (28, 254693635), (35, 203754908), (49, 145539220), (70, 101877454), (98, 72769610), (140, 50938727), (196, 36384805), (245, 29107844), (490, 14553922), (980, 7276961), (2237, 3187940), (3253, 2192260), (4474, 1593970), (6506, 1096130), (8948, 796985), (11185, 637588), (13012, 548065), (15659, 455420), (16265, 438452), (22370, 318794), (22771, 313180), (31318, 227710), (32530, 219226), (44740, 159397), (45542, 156590), (62636, 113855), (65060, 109613), (78295, 91084)]