68640440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2137}}^1$

素因数の和:2232

約数の個数: 64

約数和(自身を含む): 170868960

約数和(自身を除く): 102228520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 584, 730, 803, 1460, 1606, 2137, 2920, 3212, 4015, 4274, 6424, 8030, 8548, 10685, 16060, 17096, 21370, 23507, 32120, 42740, 47014, 85480, 94028, 117535, 156001, 188056, 235070, 312002, 470140, 624004, 780005, 940280, 1248008, 1560010, 1716011, 3120020, 3432022, 6240040, 6864044, 8580055, 13728088, 17160110, 34320220, 68640440]

約数ペア:

[(1, 68640440), (2, 34320220), (4, 17160110), (5, 13728088), (8, 8580055), (10, 6864044), (11, 6240040), (20, 3432022), (22, 3120020), (40, 1716011), (44, 1560010), (55, 1248008), (73, 940280), (88, 780005), (110, 624004), (146, 470140), (220, 312002), (292, 235070), (365, 188056), (440, 156001), (584, 117535), (730, 94028), (803, 85480), (1460, 47014), (1606, 42740), (2137, 32120), (2920, 23507), (3212, 21370), (4015, 17096), (4274, 16060), (6424, 10685), (8030, 8548)]