788127220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 1800691200

約数和(自身を除く): 1012563980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 139, 172, 190, 215, 278, 347, 380, 430, 556, 694, 695, 817, 860, 1388, 1390, 1634, 1735, 2641, 2780, 3268, 3470, 4085, 5282, 5977, 6593, 6940, 8170, 10564, 11954, 13186, 13205, 14921, 16340, 23908, 26372, 26410, 29842, 29885, 32965, 48233, 52820, 59684, 59770, 65930, 74605, 96466, 113563, 119540, 131860, 149210, 192932, 227126, 241165, 283499, 298420, 454252, 482330, 566998, 567815, 916427, 964660, 1133996, 1135630, 1417495, 1832854, 2074019, 2271260, 2834990, 3665708, 4148038, 4582135, 5669980, 8296076, 9164270, 10370095, 18328540, 20740190, 39406361, 41480380, 78812722, 157625444, 197031805, 394063610, 788127220]

約数ペア:

[(1, 788127220), (2, 394063610), (4, 197031805), (5, 157625444), (10, 78812722), (19, 41480380), (20, 39406361), (38, 20740190), (43, 18328540), (76, 10370095), (86, 9164270), (95, 8296076), (139, 5669980), (172, 4582135), (190, 4148038), (215, 3665708), (278, 2834990), (347, 2271260), (380, 2074019), (430, 1832854), (556, 1417495), (694, 1135630), (695, 1133996), (817, 964660), (860, 916427), (1388, 567815), (1390, 566998), (1634, 482330), (1735, 454252), (2641, 298420), (2780, 283499), (3268, 241165), (3470, 227126), (4085, 192932), (5282, 149210), (5977, 131860), (6593, 119540), (6940, 113563), (8170, 96466), (10564, 74605), (11954, 65930), (13186, 59770), (13205, 59684), (14921, 52820), (16340, 48233), (23908, 32965), (26372, 29885), (26410, 29842)]