78401020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4157}}^1$

素因数の和:4230

約数の個数: 48

約数和(自身を含む): 176033088

約数和(自身を除く): 97632068

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 1886, 3772, 4157, 4715, 8314, 9430, 16628, 18860, 20785, 41570, 83140, 95611, 170437, 191222, 340874, 382444, 478055, 681748, 852185, 956110, 1704370, 1912220, 3408740, 3920051, 7840102, 15680204, 19600255, 39200510, 78401020]

約数ペア:

[(1, 78401020), (2, 39200510), (4, 19600255), (5, 15680204), (10, 7840102), (20, 3920051), (23, 3408740), (41, 1912220), (46, 1704370), (82, 956110), (92, 852185), (115, 681748), (164, 478055), (205, 382444), (230, 340874), (410, 191222), (460, 170437), (820, 95611), (943, 83140), (1886, 41570), (3772, 20785), (4157, 18860), (4715, 16628), (8314, 9430)]