643818880

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^2\times {\mathrm{127}}^1$

素因数の和:324

約数の個数: 96

約数和(自身を含む): 1568874240

約数和(自身を除く): 925055360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 127, 128, 160, 178, 254, 320, 356, 445, 508, 635, 640, 712, 890, 1016, 1270, 1424, 1780, 2032, 2540, 2848, 3560, 4064, 5080, 5696, 7120, 7921, 8128, 10160, 11303, 11392, 14240, 15842, 16256, 20320, 22606, 28480, 31684, 39605, 40640, 45212, 56515, 56960, 63368, 79210, 81280, 90424, 113030, 126736, 158420, 180848, 226060, 253472, 316840, 361696, 452120, 506944, 633680, 723392, 904240, 1005967, 1013888, 1267360, 1446784, 1808480, 2011934, 2534720, 3616960, 4023868, 5029835, 5069440, 7233920, 8047736, 10059670, 16095472, 20119340, 32190944, 40238680, 64381888, 80477360, 128763776, 160954720, 321909440, 643818880]

約数ペア:

[(1, 643818880), (2, 321909440), (4, 160954720), (5, 128763776), (8, 80477360), (10, 64381888), (16, 40238680), (20, 32190944), (32, 20119340), (40, 16095472), (64, 10059670), (80, 8047736), (89, 7233920), (127, 5069440), (128, 5029835), (160, 4023868), (178, 3616960), (254, 2534720), (320, 2011934), (356, 1808480), (445, 1446784), (508, 1267360), (635, 1013888), (640, 1005967), (712, 904240), (890, 723392), (1016, 633680), (1270, 506944), (1424, 452120), (1780, 361696), (2032, 316840), (2540, 253472), (2848, 226060), (3560, 180848), (4064, 158420), (5080, 126736), (5696, 113030), (7120, 90424), (7921, 81280), (8128, 79210), (10160, 63368), (11303, 56960), (11392, 56515), (14240, 45212), (15842, 40640), (16256, 39605), (20320, 31684), (22606, 28480)]