15999760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{28571}}^1$

素因数の和:28591

約数の個数: 40

約数和(自身を含む): 42515136

約数和(自身を除く): 26515376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 28571, 57142, 114284, 142855, 199997, 228568, 285710, 399994, 457136, 571420, 799988, 999985, 1142840, 1599976, 1999970, 2285680, 3199952, 3999940, 7999880, 15999760]

約数ペア:

[(1, 15999760), (2, 7999880), (4, 3999940), (5, 3199952), (7, 2285680), (8, 1999970), (10, 1599976), (14, 1142840), (16, 999985), (20, 799988), (28, 571420), (35, 457136), (40, 399994), (56, 285710), (70, 228568), (80, 199997), (112, 142855), (140, 114284), (280, 57142), (560, 28571)]