164967920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1249}}^1$

素因数の和:1402

約数の個数: 80

約数和(自身を含む): 416640000

約数和(自身を除く): 251672080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 127, 130, 208, 254, 260, 508, 520, 635, 1016, 1040, 1249, 1270, 1651, 2032, 2498, 2540, 3302, 4996, 5080, 6245, 6604, 8255, 9992, 10160, 12490, 13208, 16237, 16510, 19984, 24980, 26416, 32474, 33020, 49960, 64948, 66040, 81185, 99920, 129896, 132080, 158623, 162370, 259792, 317246, 324740, 634492, 649480, 793115, 1268984, 1298960, 1586230, 2062099, 2537968, 3172460, 4124198, 6344920, 8248396, 10310495, 12689840, 16496792, 20620990, 32993584, 41241980, 82483960, 164967920]

約数ペア:

[(1, 164967920), (2, 82483960), (4, 41241980), (5, 32993584), (8, 20620990), (10, 16496792), (13, 12689840), (16, 10310495), (20, 8248396), (26, 6344920), (40, 4124198), (52, 3172460), (65, 2537968), (80, 2062099), (104, 1586230), (127, 1298960), (130, 1268984), (208, 793115), (254, 649480), (260, 634492), (508, 324740), (520, 317246), (635, 259792), (1016, 162370), (1040, 158623), (1249, 132080), (1270, 129896), (1651, 99920), (2032, 81185), (2498, 66040), (2540, 64948), (3302, 49960), (4996, 33020), (5080, 32474), (6245, 26416), (6604, 24980), (8255, 19984), (9992, 16510), (10160, 16237), (12490, 13208)]