80800640

素因数分解:

$2^7\times 5^1\times {\mathrm{191}}^1\times {\mathrm{661}}^1$

素因数の和:871

約数の個数: 64

約数和(自身を含む): 194469120

約数和(自身を除く): 113668480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 191, 320, 382, 640, 661, 764, 955, 1322, 1528, 1910, 2644, 3056, 3305, 3820, 5288, 6112, 6610, 7640, 10576, 12224, 13220, 15280, 21152, 24448, 26440, 30560, 42304, 52880, 61120, 84608, 105760, 122240, 126251, 211520, 252502, 423040, 505004, 631255, 1010008, 1262510, 2020016, 2525020, 4040032, 5050040, 8080064, 10100080, 16160128, 20200160, 40400320, 80800640]

約数ペア:

[(1, 80800640), (2, 40400320), (4, 20200160), (5, 16160128), (8, 10100080), (10, 8080064), (16, 5050040), (20, 4040032), (32, 2525020), (40, 2020016), (64, 1262510), (80, 1010008), (128, 631255), (160, 505004), (191, 423040), (320, 252502), (382, 211520), (640, 126251), (661, 122240), (764, 105760), (955, 84608), (1322, 61120), (1528, 52880), (1910, 42304), (2644, 30560), (3056, 26440), (3305, 24448), (3820, 21152), (5288, 15280), (6112, 13220), (6610, 12224), (7640, 10576)]