81896720

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{17351}}^1$

素因数の和:17423

約数の個数: 40

約数和(自身を含む): 193648320

約数和(自身を除く): 111751600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 17351, 34702, 69404, 86755, 138808, 173510, 277616, 347020, 694040, 1023709, 1388080, 2047418, 4094836, 5118545, 8189672, 10237090, 16379344, 20474180, 40948360, 81896720]

約数ペア:

[(1, 81896720), (2, 40948360), (4, 20474180), (5, 16379344), (8, 10237090), (10, 8189672), (16, 5118545), (20, 4094836), (40, 2047418), (59, 1388080), (80, 1023709), (118, 694040), (236, 347020), (295, 277616), (472, 173510), (590, 138808), (944, 86755), (1180, 69404), (2360, 34702), (4720, 17351)]