20003504

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2269}}^1$

素因数の和:2325

約数の個数: 40

約数和(自身を含む): 42222000

約数和(自身を除く): 22218496

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2269, 4408, 4538, 8816, 9076, 18152, 36304, 43111, 65801, 86222, 131602, 172444, 263204, 344888, 526408, 689776, 1052816, 1250219, 2500438, 5000876, 10001752, 20003504]

約数ペア:

[(1, 20003504), (2, 10001752), (4, 5000876), (8, 2500438), (16, 1250219), (19, 1052816), (29, 689776), (38, 526408), (58, 344888), (76, 263204), (116, 172444), (152, 131602), (232, 86222), (304, 65801), (464, 43111), (551, 36304), (1102, 18152), (2204, 9076), (2269, 8816), (4408, 4538)]