644919220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{43753}}^1$

素因数の和:43840

約数の個数: 48

約数和(自身を含む): 1499537088

約数和(自身を除く): 854617868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 7370, 14740, 43753, 87506, 175012, 218765, 437530, 481283, 875060, 962566, 1925132, 2406415, 2931451, 4812830, 5862902, 9625660, 11725804, 14657255, 29314510, 32245961, 58629020, 64491922, 128983844, 161229805, 322459610, 644919220]

約数ペア:

[(1, 644919220), (2, 322459610), (4, 161229805), (5, 128983844), (10, 64491922), (11, 58629020), (20, 32245961), (22, 29314510), (44, 14657255), (55, 11725804), (67, 9625660), (110, 5862902), (134, 4812830), (220, 2931451), (268, 2406415), (335, 1925132), (670, 962566), (737, 875060), (1340, 481283), (1474, 437530), (2948, 218765), (3685, 175012), (7370, 87506), (14740, 43753)]