213157040

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{9619}}^1$

素因数の和:9909

約数の個数: 40

約数和(自身を含む): 497430960

約数和(自身を除く): 284273920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 1108, 1385, 2216, 2770, 4432, 5540, 9619, 11080, 19238, 22160, 38476, 48095, 76952, 96190, 153904, 192380, 384760, 769520, 2664463, 5328926, 10657852, 13322315, 21315704, 26644630, 42631408, 53289260, 106578520, 213157040]

約数ペア:

[(1, 213157040), (2, 106578520), (4, 53289260), (5, 42631408), (8, 26644630), (10, 21315704), (16, 13322315), (20, 10657852), (40, 5328926), (80, 2664463), (277, 769520), (554, 384760), (1108, 192380), (1385, 153904), (2216, 96190), (2770, 76952), (4432, 48095), (5540, 38476), (9619, 22160), (11080, 19238)]