19794990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 29556690

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 101, 139, 141, 202, 235, 278, 282, 303, 417, 470, 505, 606, 695, 705, 834, 1010, 1390, 1410, 1515, 2085, 3030, 4170, 4747, 6533, 9494, 13066, 14039, 14241, 19599, 23735, 28078, 28482, 32665, 39198, 42117, 47470, 65330, 70195, 71205, 84234, 97995, 140390, 142410, 195990, 210585, 421170, 659833, 1319666, 1979499, 3299165, 3958998, 6598330, 9897495, 19794990]

約数ペア:

[(1, 19794990), (2, 9897495), (3, 6598330), (5, 3958998), (6, 3299165), (10, 1979499), (15, 1319666), (30, 659833), (47, 421170), (94, 210585), (101, 195990), (139, 142410), (141, 140390), (202, 97995), (235, 84234), (278, 71205), (282, 70195), (303, 65330), (417, 47470), (470, 42117), (505, 39198), (606, 32665), (695, 28482), (705, 28078), (834, 23735), (1010, 19599), (1390, 14241), (1410, 14039), (1515, 13066), (2085, 9494), (3030, 6533), (4170, 4747)]