18804907810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{69847}}^1$

素因数の和:69995

約数の個数: 64

約数和(自身を含む): 38723731200

約数和(自身を除く): 19918823390

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 109, 130, 190, 218, 247, 494, 545, 1090, 1235, 1417, 2071, 2470, 2834, 4142, 7085, 10355, 14170, 20710, 26923, 53846, 69847, 134615, 139694, 269230, 349235, 698470, 908011, 1327093, 1816022, 2654186, 4540055, 6635465, 7613323, 9080110, 13270930, 15226646, 17252209, 34504418, 38066615, 76133230, 86261045, 98973199, 144653137, 172522090, 197946398, 289306274, 494865995, 723265685, 989731990, 1446531370, 1880490781, 3760981562, 9402453905, 18804907810]

約数ペア:

[(1, 18804907810), (2, 9402453905), (5, 3760981562), (10, 1880490781), (13, 1446531370), (19, 989731990), (26, 723265685), (38, 494865995), (65, 289306274), (95, 197946398), (109, 172522090), (130, 144653137), (190, 98973199), (218, 86261045), (247, 76133230), (494, 38066615), (545, 34504418), (1090, 17252209), (1235, 15226646), (1417, 13270930), (2071, 9080110), (2470, 7613323), (2834, 6635465), (4142, 4540055), (7085, 2654186), (10355, 1816022), (14170, 1327093), (20710, 908011), (26923, 698470), (53846, 349235), (69847, 269230), (134615, 139694)]