407572720

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1777}}^1$

素因数の和:1898

約数の個数: 80

約数和(自身を含む): 984187008

約数和(自身を除く): 576614288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 61, 80, 94, 122, 188, 235, 244, 305, 376, 470, 488, 610, 752, 940, 976, 1220, 1777, 1880, 2440, 2867, 3554, 3760, 4880, 5734, 7108, 8885, 11468, 14216, 14335, 17770, 22936, 28432, 28670, 35540, 45872, 57340, 71080, 83519, 108397, 114680, 142160, 167038, 216794, 229360, 334076, 417595, 433588, 541985, 668152, 835190, 867176, 1083970, 1336304, 1670380, 1734352, 2167940, 3340760, 4335880, 5094659, 6681520, 8671760, 10189318, 20378636, 25473295, 40757272, 50946590, 81514544, 101893180, 203786360, 407572720]

約数ペア:

[(1, 407572720), (2, 203786360), (4, 101893180), (5, 81514544), (8, 50946590), (10, 40757272), (16, 25473295), (20, 20378636), (40, 10189318), (47, 8671760), (61, 6681520), (80, 5094659), (94, 4335880), (122, 3340760), (188, 2167940), (235, 1734352), (244, 1670380), (305, 1336304), (376, 1083970), (470, 867176), (488, 835190), (610, 668152), (752, 541985), (940, 433588), (976, 417595), (1220, 334076), (1777, 229360), (1880, 216794), (2440, 167038), (2867, 142160), (3554, 114680), (3760, 108397), (4880, 83519), (5734, 71080), (7108, 57340), (8885, 45872), (11468, 35540), (14216, 28670), (14335, 28432), (17770, 22936)]