78443660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{353}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 169852032

約数和(自身を除く): 91408372

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 271, 353, 410, 542, 706, 820, 1084, 1355, 1412, 1765, 2710, 3530, 5420, 7060, 11111, 14473, 22222, 28946, 44444, 55555, 57892, 72365, 95663, 111110, 144730, 191326, 222220, 289460, 382652, 478315, 956630, 1913260, 3922183, 7844366, 15688732, 19610915, 39221830, 78443660]

約数ペア:

[(1, 78443660), (2, 39221830), (4, 19610915), (5, 15688732), (10, 7844366), (20, 3922183), (41, 1913260), (82, 956630), (164, 478315), (205, 382652), (271, 289460), (353, 222220), (410, 191326), (542, 144730), (706, 111110), (820, 95663), (1084, 72365), (1355, 57892), (1412, 55555), (1765, 44444), (2710, 28946), (3530, 22222), (5420, 14473), (7060, 11111)]