28782160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32707}}^1$

素因数の和:32731

約数の個数: 40

約数和(自身を含む): 73004256

約数和(自身を除く): 44222096

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32707, 65414, 130828, 163535, 261656, 327070, 359777, 523312, 654140, 719554, 1308280, 1439108, 1798885, 2616560, 2878216, 3597770, 5756432, 7195540, 14391080, 28782160]

約数ペア:

[(1, 28782160), (2, 14391080), (4, 7195540), (5, 5756432), (8, 3597770), (10, 2878216), (11, 2616560), (16, 1798885), (20, 1439108), (22, 1308280), (40, 719554), (44, 654140), (55, 523312), (80, 359777), (88, 327070), (110, 261656), (176, 163535), (220, 130828), (440, 65414), (880, 32707)]