657294820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{51593}}^1$

素因数の和:51629

約数の個数: 72

約数和(自身を含む): 1729224504

約数和(自身を除く): 1071929684

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 51593, 103186, 206372, 257965, 361151, 515930, 670709, 722302, 1031860, 1341418, 1444604, 1805755, 2528057, 2682836, 3353545, 3611510, 4694963, 5056114, 6707090, 7223020, 9389926, 10112228, 12640285, 13414180, 18779852, 23474815, 25280570, 32864741, 46949630, 50561140, 65729482, 93899260, 131458964, 164323705, 328647410, 657294820]

約数ペア:

[(1, 657294820), (2, 328647410), (4, 164323705), (5, 131458964), (7, 93899260), (10, 65729482), (13, 50561140), (14, 46949630), (20, 32864741), (26, 25280570), (28, 23474815), (35, 18779852), (49, 13414180), (52, 12640285), (65, 10112228), (70, 9389926), (91, 7223020), (98, 6707090), (130, 5056114), (140, 4694963), (182, 3611510), (196, 3353545), (245, 2682836), (260, 2528057), (364, 1805755), (455, 1444604), (490, 1341418), (637, 1031860), (910, 722302), (980, 670709), (1274, 515930), (1820, 361151), (2548, 257965), (3185, 206372), (6370, 103186), (12740, 51593)]