828339920

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:772

約数の個数: 80

約数和(自身を含む): 1955916480

約数和(自身を除く): 1127576560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 163, 278, 326, 457, 556, 652, 695, 815, 914, 1112, 1304, 1390, 1630, 1828, 2224, 2285, 2608, 2780, 3260, 3656, 4570, 5560, 6520, 7312, 9140, 11120, 13040, 18280, 22657, 36560, 45314, 63523, 74491, 90628, 113285, 127046, 148982, 181256, 226570, 254092, 297964, 317615, 362512, 372455, 453140, 508184, 595928, 635230, 744910, 906280, 1016368, 1191856, 1270460, 1489820, 1812560, 2540920, 2979640, 5081840, 5959280, 10354249, 20708498, 41416996, 51771245, 82833992, 103542490, 165667984, 207084980, 414169960, 828339920]

約数ペア:

[(1, 828339920), (2, 414169960), (4, 207084980), (5, 165667984), (8, 103542490), (10, 82833992), (16, 51771245), (20, 41416996), (40, 20708498), (80, 10354249), (139, 5959280), (163, 5081840), (278, 2979640), (326, 2540920), (457, 1812560), (556, 1489820), (652, 1270460), (695, 1191856), (815, 1016368), (914, 906280), (1112, 744910), (1304, 635230), (1390, 595928), (1630, 508184), (1828, 453140), (2224, 372455), (2285, 362512), (2608, 317615), (2780, 297964), (3260, 254092), (3656, 226570), (4570, 181256), (5560, 148982), (6520, 127046), (7312, 113285), (9140, 90628), (11120, 74491), (13040, 63523), (18280, 45314), (22657, 36560)]