19781118560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17661713}}^1$

素因数の和:17661735

約数の個数: 48

約数和(自身を含む): 53409023136

約数和(自身を除く): 33627904576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17661713, 35323426, 70646852, 88308565, 123631991, 141293704, 176617130, 247263982, 282587408, 353234260, 494527964, 565174816, 618159955, 706468520, 989055928, 1236319910, 1412937040, 1978111856, 2472639820, 2825874080, 3956223712, 4945279640, 9890559280, 19781118560]

約数ペア:

[(1, 19781118560), (2, 9890559280), (4, 4945279640), (5, 3956223712), (7, 2825874080), (8, 2472639820), (10, 1978111856), (14, 1412937040), (16, 1236319910), (20, 989055928), (28, 706468520), (32, 618159955), (35, 565174816), (40, 494527964), (56, 353234260), (70, 282587408), (80, 247263982), (112, 176617130), (140, 141293704), (160, 123631991), (224, 88308565), (280, 70646852), (560, 35323426), (1120, 17661713)]