19781581896

素因数分解:

$2^3\times 3^2\times {\mathrm{83}}^1\times {\mathrm{3310171}}^1$

素因数の和:3310266

約数の個数: 48

約数和(自身を含む): 54220617360

約数和(自身を除く): 34439035464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 83, 166, 249, 332, 498, 664, 747, 996, 1494, 1992, 2988, 5976, 3310171, 6620342, 9930513, 13240684, 19861026, 26481368, 29791539, 39722052, 59583078, 79444104, 119166156, 238332312, 274744193, 549488386, 824232579, 1098976772, 1648465158, 2197953544, 2472697737, 3296930316, 4945395474, 6593860632, 9890790948, 19781581896]

約数ペア:

[(1, 19781581896), (2, 9890790948), (3, 6593860632), (4, 4945395474), (6, 3296930316), (8, 2472697737), (9, 2197953544), (12, 1648465158), (18, 1098976772), (24, 824232579), (36, 549488386), (72, 274744193), (83, 238332312), (166, 119166156), (249, 79444104), (332, 59583078), (498, 39722052), (664, 29791539), (747, 26481368), (996, 19861026), (1494, 13240684), (1992, 9930513), (2988, 6620342), (5976, 3310171)]