128464280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{65543}}^1$

素因数の和:65568

約数の個数: 48

約数和(自身を含む): 336240720

約数和(自身を除く): 207776440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 65543, 131086, 262172, 327715, 458801, 524344, 655430, 917602, 1310860, 1835204, 2294005, 2621720, 3211607, 3670408, 4588010, 6423214, 9176020, 12846428, 16058035, 18352040, 25692856, 32116070, 64232140, 128464280]

約数ペア:

[(1, 128464280), (2, 64232140), (4, 32116070), (5, 25692856), (7, 18352040), (8, 16058035), (10, 12846428), (14, 9176020), (20, 6423214), (28, 4588010), (35, 3670408), (40, 3211607), (49, 2621720), (56, 2294005), (70, 1835204), (98, 1310860), (140, 917602), (196, 655430), (245, 524344), (280, 458801), (392, 327715), (490, 262172), (980, 131086), (1960, 65543)]