78497980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{701}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 180442080

約数和(自身を除く): 101944100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 509, 701, 1018, 1402, 2036, 2545, 2804, 3505, 5090, 5599, 7010, 7711, 10180, 11198, 14020, 15422, 22396, 27995, 30844, 38555, 55990, 77110, 111980, 154220, 356809, 713618, 1427236, 1784045, 3568090, 3924899, 7136180, 7849798, 15699596, 19624495, 39248990, 78497980]

約数ペア:

[(1, 78497980), (2, 39248990), (4, 19624495), (5, 15699596), (10, 7849798), (11, 7136180), (20, 3924899), (22, 3568090), (44, 1784045), (55, 1427236), (110, 713618), (220, 356809), (509, 154220), (701, 111980), (1018, 77110), (1402, 55990), (2036, 38555), (2545, 30844), (2804, 27995), (3505, 22396), (5090, 15422), (5599, 14020), (7010, 11198), (7711, 10180)]