251380864

素因数分解:

$2^7\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1787}}^1$

素因数の和:1965

約数の個数: 64

約数和(自身を含む): 576308160

約数和(自身を除く): 324927296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 157, 224, 314, 448, 628, 896, 1099, 1256, 1787, 2198, 2512, 3574, 4396, 5024, 7148, 8792, 10048, 12509, 14296, 17584, 20096, 25018, 28592, 35168, 50036, 57184, 70336, 100072, 114368, 140672, 200144, 228736, 280559, 400288, 561118, 800576, 1122236, 1601152, 1963913, 2244472, 3927826, 4488944, 7855652, 8977888, 15711304, 17955776, 31422608, 35911552, 62845216, 125690432, 251380864]

約数ペア:

[(1, 251380864), (2, 125690432), (4, 62845216), (7, 35911552), (8, 31422608), (14, 17955776), (16, 15711304), (28, 8977888), (32, 7855652), (56, 4488944), (64, 3927826), (112, 2244472), (128, 1963913), (157, 1601152), (224, 1122236), (314, 800576), (448, 561118), (628, 400288), (896, 280559), (1099, 228736), (1256, 200144), (1787, 140672), (2198, 114368), (2512, 100072), (3574, 70336), (4396, 57184), (5024, 50036), (7148, 35168), (8792, 28592), (10048, 25018), (12509, 20096), (14296, 17584)]