217736320

素因数分解:

$2^7\times 5^1\times {\mathrm{521}}^1\times {\mathrm{653}}^1$

素因数の和:1193

約数の個数: 64

約数和(自身を含む): 522323640

約数和(自身を除く): 304587320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 521, 640, 653, 1042, 1306, 2084, 2605, 2612, 3265, 4168, 5210, 5224, 6530, 8336, 10420, 10448, 13060, 16672, 20840, 20896, 26120, 33344, 41680, 41792, 52240, 66688, 83360, 83584, 104480, 166720, 208960, 333440, 340213, 417920, 680426, 1360852, 1701065, 2721704, 3402130, 5443408, 6804260, 10886816, 13608520, 21773632, 27217040, 43547264, 54434080, 108868160, 217736320]

約数ペア:

[(1, 217736320), (2, 108868160), (4, 54434080), (5, 43547264), (8, 27217040), (10, 21773632), (16, 13608520), (20, 10886816), (32, 6804260), (40, 5443408), (64, 3402130), (80, 2721704), (128, 1701065), (160, 1360852), (320, 680426), (521, 417920), (640, 340213), (653, 333440), (1042, 208960), (1306, 166720), (2084, 104480), (2605, 83584), (2612, 83360), (3265, 66688), (4168, 52240), (5210, 41792), (5224, 41680), (6530, 33344), (8336, 26120), (10420, 20896), (10448, 20840), (13060, 16672)]