277205960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{1103}}^1$

素因数の和:1278

約数の個数: 64

約数和(自身を含む): 640673280

約数和(自身を除く): 363467320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 103, 122, 206, 244, 305, 412, 488, 515, 610, 824, 1030, 1103, 1220, 2060, 2206, 2440, 4120, 4412, 5515, 6283, 8824, 11030, 12566, 22060, 25132, 31415, 44120, 50264, 62830, 67283, 113609, 125660, 134566, 227218, 251320, 269132, 336415, 454436, 538264, 568045, 672830, 908872, 1136090, 1345660, 2272180, 2691320, 4544360, 6930149, 13860298, 27720596, 34650745, 55441192, 69301490, 138602980, 277205960]

約数ペア:

[(1, 277205960), (2, 138602980), (4, 69301490), (5, 55441192), (8, 34650745), (10, 27720596), (20, 13860298), (40, 6930149), (61, 4544360), (103, 2691320), (122, 2272180), (206, 1345660), (244, 1136090), (305, 908872), (412, 672830), (488, 568045), (515, 538264), (610, 454436), (824, 336415), (1030, 269132), (1103, 251320), (1220, 227218), (2060, 134566), (2206, 125660), (2440, 113609), (4120, 67283), (4412, 62830), (5515, 50264), (6283, 44120), (8824, 31415), (11030, 25132), (12566, 22060)]