1311243280

素因数分解:

$2^4\times 5^1\times {\mathrm{2113}}^1\times {\mathrm{7757}}^1$

素因数の和:9883

約数の個数: 40

約数和(自身を含む): 3050476632

約数和(自身を除く): 1739233352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2113, 4226, 7757, 8452, 10565, 15514, 16904, 21130, 31028, 33808, 38785, 42260, 62056, 77570, 84520, 124112, 155140, 169040, 310280, 620560, 16390541, 32781082, 65562164, 81952705, 131124328, 163905410, 262248656, 327810820, 655621640, 1311243280]

約数ペア:

[(1, 1311243280), (2, 655621640), (4, 327810820), (5, 262248656), (8, 163905410), (10, 131124328), (16, 81952705), (20, 65562164), (40, 32781082), (80, 16390541), (2113, 620560), (4226, 310280), (7757, 169040), (8452, 155140), (10565, 124112), (15514, 84520), (16904, 77570), (21130, 62056), (31028, 42260), (33808, 38785)]