81675680

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:502

約数の個数: 96

約数和(自身を含む): 206660160

約数和(自身を除く): 124984480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 67, 76, 80, 95, 134, 152, 160, 190, 268, 304, 335, 380, 401, 536, 608, 670, 760, 802, 1072, 1273, 1340, 1520, 1604, 2005, 2144, 2546, 2680, 3040, 3208, 4010, 5092, 5360, 6365, 6416, 7619, 8020, 10184, 10720, 12730, 12832, 15238, 16040, 20368, 25460, 26867, 30476, 32080, 38095, 40736, 50920, 53734, 60952, 64160, 76190, 101840, 107468, 121904, 134335, 152380, 203680, 214936, 243808, 268670, 304760, 429872, 510473, 537340, 609520, 859744, 1020946, 1074680, 1219040, 2041892, 2149360, 2552365, 4083784, 4298720, 5104730, 8167568, 10209460, 16335136, 20418920, 40837840, 81675680]

約数ペア:

[(1, 81675680), (2, 40837840), (4, 20418920), (5, 16335136), (8, 10209460), (10, 8167568), (16, 5104730), (19, 4298720), (20, 4083784), (32, 2552365), (38, 2149360), (40, 2041892), (67, 1219040), (76, 1074680), (80, 1020946), (95, 859744), (134, 609520), (152, 537340), (160, 510473), (190, 429872), (268, 304760), (304, 268670), (335, 243808), (380, 214936), (401, 203680), (536, 152380), (608, 134335), (670, 121904), (760, 107468), (802, 101840), (1072, 76190), (1273, 64160), (1340, 60952), (1520, 53734), (1604, 50920), (2005, 40736), (2144, 38095), (2546, 32080), (2680, 30476), (3040, 26867), (3208, 25460), (4010, 20368), (5092, 16040), (5360, 15238), (6365, 12832), (6416, 12730), (7619, 10720), (8020, 10184)]