18329480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 44982000

約数和(自身を除く): 26652520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 349, 404, 505, 520, 698, 808, 1010, 1313, 1396, 1745, 2020, 2626, 2792, 3490, 4040, 4537, 5252, 6565, 6980, 9074, 10504, 13130, 13960, 18148, 22685, 26260, 35249, 36296, 45370, 52520, 70498, 90740, 140996, 176245, 181480, 281992, 352490, 458237, 704980, 916474, 1409960, 1832948, 2291185, 3665896, 4582370, 9164740, 18329480]

約数ペア:

[(1, 18329480), (2, 9164740), (4, 4582370), (5, 3665896), (8, 2291185), (10, 1832948), (13, 1409960), (20, 916474), (26, 704980), (40, 458237), (52, 352490), (65, 281992), (101, 181480), (104, 176245), (130, 140996), (202, 90740), (260, 70498), (349, 52520), (404, 45370), (505, 36296), (520, 35249), (698, 26260), (808, 22685), (1010, 18148), (1313, 13960), (1396, 13130), (1745, 10504), (2020, 9074), (2626, 6980), (2792, 6565), (3490, 5252), (4040, 4537)]