20295760

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2371}}^1$

素因数の和:2491

約数の個数: 40

約数和(自身を含む): 47648736

約数和(自身を除く): 27352976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 2371, 4280, 4742, 8560, 9484, 11855, 18968, 23710, 37936, 47420, 94840, 189680, 253697, 507394, 1014788, 1268485, 2029576, 2536970, 4059152, 5073940, 10147880, 20295760]

約数ペア:

[(1, 20295760), (2, 10147880), (4, 5073940), (5, 4059152), (8, 2536970), (10, 2029576), (16, 1268485), (20, 1014788), (40, 507394), (80, 253697), (107, 189680), (214, 94840), (428, 47420), (535, 37936), (856, 23710), (1070, 18968), (1712, 11855), (2140, 9484), (2371, 8560), (4280, 4742)]