85497760

素因数分解:

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

素因数の和:135

約数の個数: 108

約数和(自身を含む): 219675078

約数和(自身を除く): 134177318

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 68, 80, 85, 86, 136, 160, 170, 172, 215, 272, 289, 340, 344, 430, 544, 578, 680, 688, 731, 860, 1156, 1360, 1376, 1445, 1462, 1720, 1849, 2312, 2720, 2890, 2924, 3440, 3655, 3698, 4624, 5780, 5848, 6880, 7310, 7396, 9245, 9248, 11560, 11696, 12427, 14620, 14792, 18490, 23120, 23392, 24854, 29240, 29584, 31433, 36980, 46240, 49708, 58480, 59168, 62135, 62866, 73960, 99416, 116960, 124270, 125732, 147920, 157165, 198832, 248540, 251464, 295840, 314330, 397664, 497080, 502928, 534361, 628660, 994160, 1005856, 1068722, 1257320, 1988320, 2137444, 2514640, 2671805, 4274888, 5029280, 5343610, 8549776, 10687220, 17099552, 21374440, 42748880, 85497760]

約数ペア:

[(1, 85497760), (2, 42748880), (4, 21374440), (5, 17099552), (8, 10687220), (10, 8549776), (16, 5343610), (17, 5029280), (20, 4274888), (32, 2671805), (34, 2514640), (40, 2137444), (43, 1988320), (68, 1257320), (80, 1068722), (85, 1005856), (86, 994160), (136, 628660), (160, 534361), (170, 502928), (172, 497080), (215, 397664), (272, 314330), (289, 295840), (340, 251464), (344, 248540), (430, 198832), (544, 157165), (578, 147920), (680, 125732), (688, 124270), (731, 116960), (860, 99416), (1156, 73960), (1360, 62866), (1376, 62135), (1445, 59168), (1462, 58480), (1720, 49708), (1849, 46240), (2312, 36980), (2720, 31433), (2890, 29584), (2924, 29240), (3440, 24854), (3655, 23392), (3698, 23120), (4624, 18490), (5780, 14792), (5848, 14620), (6880, 12427), (7310, 11696), (7396, 11560), (9245, 9248)]