320043920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1619}}^1$

素因数の和:1992

約数の個数: 80

約数和(自身を含む): 853338240

約数和(自身を除く): 533294320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 353, 560, 706, 1412, 1619, 1765, 2471, 2824, 3238, 3530, 4942, 5648, 6476, 7060, 8095, 9884, 11333, 12355, 12952, 14120, 16190, 19768, 22666, 24710, 25904, 28240, 32380, 39536, 45332, 49420, 56665, 64760, 90664, 98840, 113330, 129520, 181328, 197680, 226660, 453320, 571507, 906640, 1143014, 2286028, 2857535, 4000549, 4572056, 5715070, 8001098, 9144112, 11430140, 16002196, 20002745, 22860280, 32004392, 40005490, 45720560, 64008784, 80010980, 160021960, 320043920]

約数ペア:

[(1, 320043920), (2, 160021960), (4, 80010980), (5, 64008784), (7, 45720560), (8, 40005490), (10, 32004392), (14, 22860280), (16, 20002745), (20, 16002196), (28, 11430140), (35, 9144112), (40, 8001098), (56, 5715070), (70, 4572056), (80, 4000549), (112, 2857535), (140, 2286028), (280, 1143014), (353, 906640), (560, 571507), (706, 453320), (1412, 226660), (1619, 197680), (1765, 181328), (2471, 129520), (2824, 113330), (3238, 98840), (3530, 90664), (4942, 64760), (5648, 56665), (6476, 49420), (7060, 45332), (8095, 39536), (9884, 32380), (11333, 28240), (12355, 25904), (12952, 24710), (14120, 22666), (16190, 19768)]