1998090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{149}}^2$

素因数の和:311

約数の個数: 36

約数和(自身を含む): 5230134

約数和(自身を除く): 3232044

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 149, 298, 447, 745, 894, 1341, 1490, 2235, 2682, 4470, 6705, 13410, 22201, 44402, 66603, 111005, 133206, 199809, 222010, 333015, 399618, 666030, 999045, 1998090]

約数ペア:

[(1, 1998090), (2, 999045), (3, 666030), (5, 399618), (6, 333015), (9, 222010), (10, 199809), (15, 133206), (18, 111005), (30, 66603), (45, 44402), (90, 22201), (149, 13410), (298, 6705), (447, 4470), (745, 2682), (894, 2235), (1341, 1490)]