645666896

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{503}}^1$

素因数の和:748

約数の個数: 80

約数和(自身を含む): 1461406464

約数和(自身を除く): 815739568

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 157, 292, 314, 503, 511, 584, 628, 1006, 1022, 1099, 1168, 1256, 2012, 2044, 2198, 2512, 3521, 4024, 4088, 4396, 7042, 8048, 8176, 8792, 11461, 14084, 17584, 22922, 28168, 36719, 45844, 56336, 73438, 78971, 80227, 91688, 146876, 157942, 160454, 183376, 257033, 293752, 315884, 320908, 514066, 552797, 587504, 631768, 641816, 1028132, 1105594, 1263536, 1283632, 2056264, 2211188, 4112528, 4422376, 5764883, 8844752, 11529766, 23059532, 40354181, 46119064, 80708362, 92238128, 161416724, 322833448, 645666896]

約数ペア:

[(1, 645666896), (2, 322833448), (4, 161416724), (7, 92238128), (8, 80708362), (14, 46119064), (16, 40354181), (28, 23059532), (56, 11529766), (73, 8844752), (112, 5764883), (146, 4422376), (157, 4112528), (292, 2211188), (314, 2056264), (503, 1283632), (511, 1263536), (584, 1105594), (628, 1028132), (1006, 641816), (1022, 631768), (1099, 587504), (1168, 552797), (1256, 514066), (2012, 320908), (2044, 315884), (2198, 293752), (2512, 257033), (3521, 183376), (4024, 160454), (4088, 157942), (4396, 146876), (7042, 91688), (8048, 80227), (8176, 78971), (8792, 73438), (11461, 56336), (14084, 45844), (17584, 36719), (22922, 28168)]