289460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 624456

約数和(自身を除く): 334996

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 353, 410, 706, 820, 1412, 1765, 3530, 7060, 14473, 28946, 57892, 72365, 144730, 289460]

約数ペア:

[(1, 289460), (2, 144730), (4, 72365), (5, 57892), (10, 28946), (20, 14473), (41, 7060), (82, 3530), (164, 1765), (205, 1412), (353, 820), (410, 706)]