81357376

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:156

約数の個数: 112

約数和(自身を含む): 183465216

約数和(自身を除く): 102107840

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 43, 47, 64, 68, 74, 86, 94, 136, 148, 172, 188, 272, 296, 344, 376, 544, 592, 629, 688, 731, 752, 799, 1088, 1184, 1258, 1376, 1462, 1504, 1591, 1598, 1739, 2021, 2368, 2516, 2752, 2924, 3008, 3182, 3196, 3478, 4042, 5032, 5848, 6364, 6392, 6956, 8084, 10064, 11696, 12728, 12784, 13912, 16168, 20128, 23392, 25456, 25568, 27047, 27824, 29563, 32336, 34357, 40256, 46784, 50912, 51136, 54094, 55648, 59126, 64672, 68714, 74777, 101824, 108188, 111296, 118252, 129344, 137428, 149554, 216376, 236504, 274856, 299108, 432752, 473008, 549712, 598216, 865504, 946016, 1099424, 1196432, 1271209, 1731008, 1892032, 2198848, 2392864, 2542418, 4785728, 5084836, 10169672, 20339344, 40678688, 81357376]

約数ペア:

[(1, 81357376), (2, 40678688), (4, 20339344), (8, 10169672), (16, 5084836), (17, 4785728), (32, 2542418), (34, 2392864), (37, 2198848), (43, 1892032), (47, 1731008), (64, 1271209), (68, 1196432), (74, 1099424), (86, 946016), (94, 865504), (136, 598216), (148, 549712), (172, 473008), (188, 432752), (272, 299108), (296, 274856), (344, 236504), (376, 216376), (544, 149554), (592, 137428), (629, 129344), (688, 118252), (731, 111296), (752, 108188), (799, 101824), (1088, 74777), (1184, 68714), (1258, 64672), (1376, 59126), (1462, 55648), (1504, 54094), (1591, 51136), (1598, 50912), (1739, 46784), (2021, 40256), (2368, 34357), (2516, 32336), (2752, 29563), (2924, 27824), (3008, 27047), (3182, 25568), (3196, 25456), (3478, 23392), (4042, 20128), (5032, 16168), (5848, 13912), (6364, 12784), (6392, 12728), (6956, 11696), (8084, 10064)]