164717420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{9887}}^1$

素因数の和:9927

約数の個数: 72

約数和(自身を含む): 426093696

約数和(自身を除く): 261376276

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 2380, 3332, 4165, 8330, 9887, 16660, 19774, 39548, 49435, 69209, 98870, 138418, 168079, 197740, 276836, 336158, 346045, 484463, 672316, 692090, 840395, 968926, 1176553, 1384180, 1680790, 1937852, 2353106, 2422315, 3361580, 4706212, 4844630, 5882765, 8235871, 9689260, 11765530, 16471742, 23531060, 32943484, 41179355, 82358710, 164717420]

約数ペア:

[(1, 164717420), (2, 82358710), (4, 41179355), (5, 32943484), (7, 23531060), (10, 16471742), (14, 11765530), (17, 9689260), (20, 8235871), (28, 5882765), (34, 4844630), (35, 4706212), (49, 3361580), (68, 2422315), (70, 2353106), (85, 1937852), (98, 1680790), (119, 1384180), (140, 1176553), (170, 968926), (196, 840395), (238, 692090), (245, 672316), (340, 484463), (476, 346045), (490, 336158), (595, 276836), (833, 197740), (980, 168079), (1190, 138418), (1666, 98870), (2380, 69209), (3332, 49435), (4165, 39548), (8330, 19774), (9887, 16660)]