164581840

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 391974912

約数和(自身を除く): 227393072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 127, 167, 194, 254, 334, 388, 485, 508, 635, 668, 776, 835, 970, 1016, 1270, 1336, 1552, 1670, 1940, 2032, 2540, 2672, 3340, 3880, 5080, 6680, 7760, 10160, 12319, 13360, 16199, 21209, 24638, 32398, 42418, 49276, 61595, 64796, 80995, 84836, 98552, 106045, 123190, 129592, 161990, 169672, 197104, 212090, 246380, 259184, 323980, 339344, 424180, 492760, 647960, 848360, 985520, 1295920, 1696720, 2057273, 4114546, 8229092, 10286365, 16458184, 20572730, 32916368, 41145460, 82290920, 164581840]

約数ペア:

[(1, 164581840), (2, 82290920), (4, 41145460), (5, 32916368), (8, 20572730), (10, 16458184), (16, 10286365), (20, 8229092), (40, 4114546), (80, 2057273), (97, 1696720), (127, 1295920), (167, 985520), (194, 848360), (254, 647960), (334, 492760), (388, 424180), (485, 339344), (508, 323980), (635, 259184), (668, 246380), (776, 212090), (835, 197104), (970, 169672), (1016, 161990), (1270, 129592), (1336, 123190), (1552, 106045), (1670, 98552), (1940, 84836), (2032, 80995), (2540, 64796), (2672, 61595), (3340, 49276), (3880, 42418), (5080, 32398), (6680, 24638), (7760, 21209), (10160, 16199), (12319, 13360)]