78750340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{701}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 170889264

約数和(自身を除く): 92138924

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 137, 164, 205, 274, 410, 548, 685, 701, 820, 1370, 1402, 2740, 2804, 3505, 5617, 7010, 11234, 14020, 22468, 28085, 28741, 56170, 57482, 96037, 112340, 114964, 143705, 192074, 287410, 384148, 480185, 574820, 960370, 1920740, 3937517, 7875034, 15750068, 19687585, 39375170, 78750340]

約数ペア:

[(1, 78750340), (2, 39375170), (4, 19687585), (5, 15750068), (10, 7875034), (20, 3937517), (41, 1920740), (82, 960370), (137, 574820), (164, 480185), (205, 384148), (274, 287410), (410, 192074), (548, 143705), (685, 114964), (701, 112340), (820, 96037), (1370, 57482), (1402, 56170), (2740, 28741), (2804, 28085), (3505, 22468), (5617, 14020), (7010, 11234)]