215389520

素因数分解:

$2^4\times 5^1\times {\mathrm{1439}}^1\times {\mathrm{1871}}^1$

素因数の和:3323

約数の個数: 40

約数和(自身を含む): 501396480

約数和(自身を除く): 286006960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1439, 1871, 2878, 3742, 5756, 7195, 7484, 9355, 11512, 14390, 14968, 18710, 23024, 28780, 29936, 37420, 57560, 74840, 115120, 149680, 2692369, 5384738, 10769476, 13461845, 21538952, 26923690, 43077904, 53847380, 107694760, 215389520]

約数ペア:

[(1, 215389520), (2, 107694760), (4, 53847380), (5, 43077904), (8, 26923690), (10, 21538952), (16, 13461845), (20, 10769476), (40, 5384738), (80, 2692369), (1439, 149680), (1871, 115120), (2878, 74840), (3742, 57560), (5756, 37420), (7195, 29936), (7484, 28780), (9355, 23024), (11512, 18710), (14390, 14968)]