12703780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 28445760

約数和(自身を除く): 15741980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 331, 380, 404, 505, 662, 1010, 1324, 1655, 1919, 2020, 3310, 3838, 6289, 6620, 7676, 9595, 12578, 19190, 25156, 31445, 33431, 38380, 62890, 66862, 125780, 133724, 167155, 334310, 635189, 668620, 1270378, 2540756, 3175945, 6351890, 12703780]

約数ペア:

[(1, 12703780), (2, 6351890), (4, 3175945), (5, 2540756), (10, 1270378), (19, 668620), (20, 635189), (38, 334310), (76, 167155), (95, 133724), (101, 125780), (190, 66862), (202, 62890), (331, 38380), (380, 33431), (404, 31445), (505, 25156), (662, 19190), (1010, 12578), (1324, 9595), (1655, 7676), (1919, 6620), (2020, 6289), (3310, 3838)]