8713520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 22096800

約数和(自身を除く): 13383280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 149, 170, 172, 215, 272, 298, 340, 344, 430, 596, 680, 688, 731, 745, 860, 1192, 1360, 1462, 1490, 1720, 2384, 2533, 2924, 2980, 3440, 3655, 5066, 5848, 5960, 6407, 7310, 10132, 11696, 11920, 12665, 12814, 14620, 20264, 25330, 25628, 29240, 32035, 40528, 50660, 51256, 58480, 64070, 101320, 102512, 108919, 128140, 202640, 217838, 256280, 435676, 512560, 544595, 871352, 1089190, 1742704, 2178380, 4356760, 8713520]

約数ペア:

[(1, 8713520), (2, 4356760), (4, 2178380), (5, 1742704), (8, 1089190), (10, 871352), (16, 544595), (17, 512560), (20, 435676), (34, 256280), (40, 217838), (43, 202640), (68, 128140), (80, 108919), (85, 102512), (86, 101320), (136, 64070), (149, 58480), (170, 51256), (172, 50660), (215, 40528), (272, 32035), (298, 29240), (340, 25628), (344, 25330), (430, 20264), (596, 14620), (680, 12814), (688, 12665), (731, 11920), (745, 11696), (860, 10132), (1192, 7310), (1360, 6407), (1462, 5960), (1490, 5848), (1720, 5066), (2384, 3655), (2533, 3440), (2924, 2980)]