30689320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18713}}^1$

素因数の和:18765

約数の個数: 32

約数和(自身を含む): 70738920

約数和(自身を除く): 40049600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18713, 37426, 74852, 93565, 149704, 187130, 374260, 748520, 767233, 1534466, 3068932, 3836165, 6137864, 7672330, 15344660, 30689320]

約数ペア:

[(1, 30689320), (2, 15344660), (4, 7672330), (5, 6137864), (8, 3836165), (10, 3068932), (20, 1534466), (40, 767233), (41, 748520), (82, 374260), (164, 187130), (205, 149704), (328, 93565), (410, 74852), (820, 37426), (1640, 18713)]