278300260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1237}}^1\times {\mathrm{1607}}^1$

素因数の和:2860

約数の個数: 48

約数和(自身を含む): 668876544

約数和(自身を除く): 390576284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1237, 1607, 2474, 3214, 4948, 6185, 6428, 8035, 8659, 11249, 12370, 16070, 17318, 22498, 24740, 32140, 34636, 43295, 44996, 56245, 86590, 112490, 173180, 224980, 1987859, 3975718, 7951436, 9939295, 13915013, 19878590, 27830026, 39757180, 55660052, 69575065, 139150130, 278300260]

約数ペア:

[(1, 278300260), (2, 139150130), (4, 69575065), (5, 55660052), (7, 39757180), (10, 27830026), (14, 19878590), (20, 13915013), (28, 9939295), (35, 7951436), (70, 3975718), (140, 1987859), (1237, 224980), (1607, 173180), (2474, 112490), (3214, 86590), (4948, 56245), (6185, 44996), (6428, 43295), (8035, 34636), (8659, 32140), (11249, 24740), (12370, 22498), (16070, 17318)]