85979980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{457}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 189282240

約数和(自身を除く): 103302260

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 409, 457, 460, 818, 914, 1636, 1828, 2045, 2285, 4090, 4570, 8180, 9140, 9407, 10511, 18814, 21022, 37628, 42044, 47035, 52555, 94070, 105110, 186913, 188140, 210220, 373826, 747652, 934565, 1869130, 3738260, 4298999, 8597998, 17195996, 21494995, 42989990, 85979980]

約数ペア:

[(1, 85979980), (2, 42989990), (4, 21494995), (5, 17195996), (10, 8597998), (20, 4298999), (23, 3738260), (46, 1869130), (92, 934565), (115, 747652), (230, 373826), (409, 210220), (457, 188140), (460, 186913), (818, 105110), (914, 94070), (1636, 52555), (1828, 47035), (2045, 42044), (2285, 37628), (4090, 21022), (4570, 18814), (8180, 10511), (9140, 9407)]